How fast the birds fly or how long it takes them to make the 2,000

mile flight across the ocean to the Aleutian Islands, we do not know.

If they fly at the rate of 40 miles an hour without stopping, it would

take over two days. They probably can not sustain such a prolonged

effort without food. Practically all shore birds are known to alight on

and arise from the water at will; so the chances are that they stop to

rest on the way. They probably obtain some food from floating masses

of seaweed, from the refuse left by whales, or from the numerous forms

of minute animal life to be found on the surface. These birds have

frequently been seen migrating at sea hundreds of miles from land, and

one observer has actually seen one resting on the water. Evidence that

they do so is furnished by the fact that native gunners in Trinidad,

according to some notes sent to me by Julian Lyder, detect the newly

arrived birds by a salty taste on the feathers.

The plover leave the Hawaiian Islands during April and May. We have no

data as to when they reach the Aleutian Islands, but they arrive in the

Commander Islands about the middle of May, and the first arrivals were

noted at Nijni Kolymsk, Siberia, on May 30. On the Pribilof Islands

they have been known to arrive as early as April 18, but they usually

come about the first week in May. A. H. Twitchell tells me that he has

seen them at Bethel, Alaska, as early as May 8, and Herbert W. Brandt

says in his notes from Hooper Bay:

When the first small flocks of this noble Asiatic visitant

appeared on Point Dall on May 16 the receding snow seemed

to emphasize its golden splendor. It never became really

common like its larger relative, the black-bellied plover,

but numerous individuals and small bands were observed

which, however, proved to be transients, for they all

departed by early June. They usually associated with the

gaudily attired ruddy turnstone and the combined lavish

color effect of these two feathered gems was lovely indeed

to behold. The Eskimos claim that, when seal hunting off

Point Dall, they often encountered birds of the present

species flying shoreward, so perhaps many of these

long-flighted migrants moved directly from the western

section of the Aleutian Islands across Bering Sea to their

Alaskan summer homes.

_Nesting._--Mr. Brandt has sent me the following notes on the nesting

habits of this plover:

The breeding realm of the aristocratic golden plover in

the Hooper Bay region is confined to a narrow belt on

the mountain slopes well above brush line in the Askinuk

Range. Here at an altitude of from five to eight hundred

feet dwells a pair nearly every half mile, or about the

same relative distance apart that the black-bellied plover

families maintain between themselves on the tundra below.

The only nest of the Pacific golden plover to come under

my observation was found on June 27 at an altitude of 600

feet on the Bimute spur of the Askinuk Range. On this

upper mountain slope amid the scattered rocky outcrops

exists a grim Arctic flora of mosses and lichens which

in patches is mottled black and grayish white. On one of

these velvet-like spots a little top moss is removed by the

birds so as to make a slight depression in which the four

beautiful eggs are placed. The lining of the nest is simply

a few short unarranged stems of the reindeer moss that no

doubt grew on the site. The nesting cavity is 4 inches in

diameter and only half an inch in depth, thus making it

notable as perhaps the most meager of the limicoline abodes

we found. The parti-colored eggs and their environs blend

as one in coloration, so, even in that jaeger-ridden land,

they enjoy unusual protective security. The male bird alone

was present during my stay in the vicinity of his abiding

place and failed to exhibit either the extreme timidity or

the agitation so characteristic of the black-bellied plover.

Henry Seebohm (1901) gives the following account of finding a nest near

the banks of the Yenesei River in Siberia:

On the top of the bank I found myself on the real tundra.

Not a trace of a pine tree was visible, and the birches

rarely exceeded 12 inches in height. There was less grass,

more moss and lichen, and the ground was covered with

patches of yellow mud or clay, in which were a few small

stones, that were apparently too barren for even moss or

lichen to grow upon. The tundra was hilly, with lakes,

swamps, and bogs in the wide valleys and plains. As soon

as I reached the flat bogs I heard the plaintive cry of a

plover, and presently caught sight of two birds. The male

was very conspicuous, but all my attempts to follow the

female with my glass, in order to trace her to the nest,

proved ineffectual; she was too nearly the color of the

ground, and the herbage was too high. Feeling convinced

that I was within 30 paces of the nest, I shot the male,

and commenced a diligent search. The bird proved to be

the Asiatic golden plover, with gray axillaries, and I

determined to devote at least an hour looking for the nest.

By a wonderful piece of good fortune I found it, with four

eggs, in less than five minutes. It was merely a hollow in

the ground upon a piece of turfy land, overgrown with moss

and lichen, and was lined with broken stalks of reindeer

moss. The eggs more resembled those of the golden than

those of the grey plover, but were smaller than either.

Miss Maud D. Haviland (1915_a_) had considerable experience with this

plover on the Yenesei and took some excellent photographs of it; she

writes:

I first saw a few birds at Dudinka, where they were

probably on migration, and afterwards the species was

common all the way down to Golchika. Each pair occupied

perhaps 2 furlongs of tundra. I should think that every

acre of moss and lichen from the Yenesei to the Lena in

summer is thus parceled out. Your progress across the

tundra in July is heralded and attended by a chorus of

plaintive cries. Both birds meet you a quarter of a mile

from the nest and never leave you until you are at the

boundaries of their own territory, and they can safely hand

you over to their next neighbors for espionage. Covert, of

course, there is none--but it is needless to say more. The

suspiciousness and patience of the golden plover are the

same all the world over; and I will not dwell upon them to

those who themselves have no doubt walked vainly for half a

day about the bird’s breeding grounds in this country and

listened to its maddening but at the same time most musical

protests.

The first nest was found on July 4. It was a shallow

depression, lined with dry lichen haulms on a slope of the

tundra. The bird, which must, I think, either have been

deaf or else exceedingly stupid, did not move until I was

well over the hill and within 60 yards of her, when she

jumped up and feigned a broken wing.

_Eggs._--The eggs are similar to those of the American golden plover;

the ground colors average paler. In three sets they run from “light

buff” to “cream color”; Mr. Brandt’s eggs run from “ivory yellow” to

“vinaceous buff”; and in two eggs figured by Mr. Poynting (1895) the

ground colors are in shades of “olive buff.” Mr. Brandt says in his

notes:

The eggs of this bird are no doubt subject to much

variation for the two sets are very different. On one the

surface markings are distinct and elongated longitudinally

while on the other clutch large blotches almost cover the

larger end. These spots are brownish black to black where

the pigment is rich, but when occasionally it is thin, as

on a few outlying edges, it becomes brick red. Pursuant to

the usual rule with many of the boldly marked eggs of the

shore birds the underlying spots are few and ill defined.

These are in lavender tones from pale mouse gray to grayish

lavender.

The measurements of 34 eggs average 48 by 33.2 millimeters; the eggs

showing the four extremes measure =51.8= by 32.5, 48.5 by =34.9=,

=45.2= by 32.4, and 46.4 by =31.5= millimeters.

_Young._--The incubation period is probably the same as it is for the

European bird, 27 days; both sexes incubate the eggs and care for the

young. Thayer and Bangs (1914) write:

Mr. Koren watched the habits of the birds closely and found

that the males appear to do all the incubating in the early

stages, the female at that time never being near the nest.

Later on, when the eggs are nearly ready to hatch, she

appears again and takes her turn with the male. When the

young are hatched, both parent birds are always with them.

At Cape Chelakhskai, August 27, 1912, large flocks of young

birds were seen ready to migrate.

Miss Haviland (1915_a_) says:

As soon as the young ones were able to run alone, which,

roughly speaking, was about July 20, the birds left the

higher ground and began to collect into flocks in the

marshy places of the tundra. I am inclined to think that

the young birds must need to wash and drink a great deal,

as otherwise it is not easy to understand why all the

waders of the tundra should leave the nesting sites so

early and wander down to the sphagnum swamps. Some of the

Asiatic golden plover even crossed the mud hills and came

down to the banks of the river.

_Plumages._--The downy young Pacific golden plover is like the American

bird of the same age except that the yellow is rather brighter, about

“lemon chrome,” and decidedly more extensive; it predominates over the

black on the crown, back, and rump; there is very little white anywhere

except in the patch under the eye and on the chin, throat, and under

parts. Miss Haviland (1915_a_), however, says:

The white tract between the homogeneous mottling of the

crown and nape, and the successive black and yellow

bands which lie above and behind the eye, and which in

_C. apricarius_ is sometimes hardly discernible, is very

pronounced in _C. fulvus_ and has enlarged at the expense

of the colored bands below it. The nape and upper part of

the body are more spotted with white, and there is little

or no yellow on the cheek below the eye.

Subsequent plumages and molts are apparently similar to those of the

other golden plovers. Doctor Henshaw (1910) writes:

It is of interest to note that in fall this plover migrates

before it molts; in spring it molts before it migrates.

The first birds to reach the archipelago in August are,

as stated, adults, and while they are practically in full

breeding dress they begin to molt into the winter dress

almost at once. The molting season for the species is

long, and many individuals, doubtless birds of the year,

may be found the last of December still molting into the

fall and winter dress. By the middle of February numerous

individuals are already beginning to molt a second time

and to assume the distinctive nuptial plumage, which, in

the case of these early birds, is practically completed

during the month of March, though individuals continue to

moult far into April and some no doubt complete the final

stages in Alaska. Doubtless the individuals to molt first

in spring are the adults which arrive first, and finish

the fall molt first; and doubtless, too, these are the

birds first to leave Hawaii for their breeding grounds in

Alaska. So protracted is the molt of the species that it

is probably true that during the stay of this plover in

Hawaii--from middle August till May--there is not a month

when some individuals are not molting.

There is no reason for believing that the plover summering

in the islands which, as before stated, are chiefly if not

wholly immature birds, participate in the spring molt. At

all events the Hawaiian summer plover and turnstones that I

have seen were, without exception, in the winter garb.

_Food._--Lucien M. Turner (1886) says that, on their first arrival in

Alaska, the plover “feed principally on berries of the _Vaccinium_ and

_Empetrum_, as many of these berries do not dislodge until succeeding

growths push them off.” Others have noted the same habit in late summer

and early fall. Some observers on the Pribilof Islands have noted

that they frequent the killing grounds and feed extensively on the

blowfly maggots there. But Preble and McAtee (1923) say that in the two

stomachs that they examined “none of these larvæ were found, their food

contents consisting of beetles, 72.5 per cent; flies, 22.5 per cent;

Hymenoptera, 4 per cent; and seeds of crowberry (_Empetrum nigrum_), 1

per cent.”

Doctor Henshaw (1910) writes:

During its stay in the islands the plover, as also the

turnstone, feed chiefly in the upland pastures and

clearings, up to 6,000 or 7,000 feet, and on newly

plowed cane land. Both the sugar planter and the stock

raiser have much to thank the plover for, since, while

the birds feed on small seeds to some extent, they live

chiefly on insects, and according to Perkins, on insects

of much economic importance, since they depend largely

on the caterpillars of two of the most widely spread and

destructive of the island “cut worms.” These insects are

most abundant when the grass on the island pastures is

green and luxuriant, and this usually is in winter, when

rains are most copious.

_Behavior._--The general behavior of the Pacific golden plover is not

different from that of its commoner relatives. My personal acquaintance

with it was made on the high rolling tundra and the foothills back of

Nome, Alaska. Here we found it quite common during the middle of July,

where it was evidently breeding or had been breeding; and we collected

quite a series of adults, juvenals, and even downy young. As we walked

over the tundra, we frequently heard their rich, melodious, whistling

notes, or saw a richly colored adult, in full nuptial plumage, standing

like a sentinel on some little hummock or ridge. Occasionally one would

try to entice us away by running slowly through the hollows or by

fluttering along the ground as if injured; but eventually it would take

wing and circle back to where its young were probably hidden.

Mr. Brandt says in his notes:

The Pacific golden plover’s adroit movements in

approaching his nest, made to deceive the hostile eye,

were interesting, and well illustrate the tactics of the

members of the plover family found about Hooper Bay. He

would run rapidly without visible bodily effort, and then

stop abruptly and remain motionless, not even turning his

head. His course always lay across the little ridges, never

along them, and he would follow the slight depressions, but

usually came to a halt on a little eminence. When close to

me, in order to get a wider range of vision, he would raise

himself on the terminal joints of his toes and stretch up

his neck, all with a jerky motion, the whole reminding me

somewhat of the action of the burrowing owl. If agitated

he ran rapidly to and fro, uttering an occasional piping

note, but seldom taking wing.

_Voice._--John T. Nichols describes the notes of this plover very well

as follows:

I have met this western race of the golden plover only on

its breeding grounds (at Nome, Alaska) where its notes

are quite unlike the flight note of the eastern bird in

migration, though some have almost an identical quality

with that call. Running about on the ground, voicing noisy

protest at the invasion of its ground, it has two unlike

cries used interchangeably, _peep!_ etc.; _toodlee_,

etc.; the first plaintive, the second mellow. Other less

frequent notes are _tudleu_ and _tdlu-eep_ suggesting the

semipalmated plover. When the two members of a pair alight

together for a moment a note of greeting suggests in form

the whip-poor-will’s call, _piterweeu, piterweeu, piterwit_

or _peeperwip, peeperweeu, peeperwip_.

A different, striking note is associated with what seems

to be nuptial display. A bird circles at moderate height

waving widespread wings in slow, measured, tern-like

manner, meanwhile uttering a loud, long-drawn, sweet

_pee-er-wee_, and in a few minutes dives to the tundra

and alights. The form of this call is rather that of the

black-bellied plover though its tone is that of the golden.

Miss Haviland (1915_a_) describes similar notes and observes that,

“roughly speaking, the alarm note of the common golden plover is

monosyllabic; that of the Asiatic golden plover is dissyllabic; and

that of the gray plover is distinctly trisyllabic in character.”

_Fall._--The plover which breed in Alaska migrate over Bering Sea,

stopping on the Pribilof Islands; the first birds, probably adults,

come during August; the young birds come later, mainly in September and

October, with one very late date, November 5. The few available dates

for the Aleutian and Commander Islands are also late, September and

October, probably young birds. The first birds to reach the Hawaiian

Islands are adults in breeding plumage; they arrive about the middle or

latter part of August; and Doctor Henshaw (1910) says “that they are

invariably in good flesh and that some are very fat. Later arrivals,

however, no doubt young of the year, are comparatively poor in flesh

and require considerable time to fatten.” This flight to these islands

is a most remarkable feat, for, even granted that they can rest and

feed to some extent on the surface of the ocean, it still remains a

mystery how they can find this little group of islands in the middle

of such a vast expanse of ocean. Doctor Henshaw (1910) makes some

suggestions which throw some light on the subject; he says:

About September the wind that prevails in the North Pacific

immediately south of the Aleutians is from the northwest.

It is generally believed that migrating birds prefer to

fly on a beam wind. By heading southwest, birds migrating

to Hawaii might have the northwest abeam till about the

neighborhood of latitude 30° where they would be almost

sure to pick up the northeast trades. By then changing

their course to southeast they would be enabled to fly with

wind abeam till they sighted the islands. The Hawaiian

Archipelago with the chain of low islands and sand spits to

the northwest afford a reasonable chance for a successful

landfall, since unitedly they stretch away in a very thin

line for some 2,200 miles. Moreover the islands are close

enough together so that migrants high in air would not be

likely to miss them by passing between.

The birds which breed in Siberia are probably those that migrate

through Mongolia and Japan and spend the winter in India, Burma, the

Malay Archipelago, and Australia.

_Winter._--Maj. G. Ralph Meyer has sent me the following notes on this

plover in the Hawaiian Islands:

The plover are very plentiful and I see them passing over

every day. They usually arrive about the middle of August

and remain until the middle of March. Along about that

time of the year they seem to congregate on the flats on

the northeast end of the island and probably leave from

there on the long flight to Alaska. During the winter they

alternate between the plains of the high central plateau of

the island and the lowland on both sides of the island. On

the east side there is some low grassy land and they are

common there. On this side they frequent tide flats during

the low tides and then go up into the central plateau

during the high tides. They perhaps spend some of the time

in sheltered ponds on this side and wherever they can find

muddy flats on which to feed.

The call note when flying is usually a whistled _too-whee_,

easily imitated. They answer to the call note very readily

and we use this when hunting them. We use plover decoys,

placing them in the mud flats during high tide, and then at

the turning of the tide the birds come from the direction

of the mountains to feed. The decoys are placed on the

highest part of the flats, so that the birds will have no

other place to alight. We face the decoys up the wind, as

the birds usually face that way when they are feeding. As

they come near we call to them, merely imitating their

call. They will circle around and finally decoy very nicely

if they are not alarmed by any sudden movement. When

circling around decoys they make a sort of chuckling noise,

which I can not describe except as a chuckling whistle.

Occasionally a wandering tattler will decoy and very often

we get turnstones. On one occasion last year I saw a flock

of about 20 to 30 birds, apparently turnstones, flying in a

“V” or semicircle formation, and the leader was undoubtedly

a plover. The birds were a couple of hundred feet in the

air, so I could not be sure of the turnstones, but I was

sure of the plover. He was leading them, for they followed

him wherever he went. On a visit to Hawaii in July, 1916,

I found plover on the slopes of Mauna Loa, one of the high

mountains of the island. I have never seen them on this

island during the summer.

W. B. Alexander tells me that this plover is--

a common visitor to Australian coasts, especially in

summer, though some appear to be present at all seasons.

While in Australia this species is usually found in small

flocks and is partial to reedy swamps and the margins of

lakes, as well as to estuaries fringed with mangroves. In

fact, it evidently likes cover, though it may be met with

on the open sea beach.

In his notes from Australia, Charles Barrett says:

All parts of the Commonwealth receive their quota of golden

plover, and in the southern portions of the country the

birds are seen about the end of October (early summer).

The species is nowhere very plentiful (A. J. Campbell),

but I have seen it often, singly, or in small flocks, in

different localities, chiefly along the seashore and on

swampy land, seeking small shellfish, etc. Sometimes it

associates with the black-bellied plover (_Squatarola

squatarola_). In the Capricorn Group I met with it in fair

numbers on the Masthead Island beaches. Like other migrants

observed among the isles, the plover were fresh arrivals,

and each day their numbers increased. They were in poor

condition and seemed to be exhausted after their great

migratory flight. Some of the specimens taken by collectors

in our party still retained some of the breeding plumage;

in one example the breast was almost black.

In New South Wales I observed this species on the sand

spits at the sea entrance to Wallis Lake in October, 1921.

They were wary, but through field glasses we could see

them busily seeking for food. In my own State, Victoria,

specimens have been taken both in the summer and winter

plumage. The birds frequent open grass country, as well

as the seashore; in fact, they are more abundant often

in country of this class than elsewhere in a district.

Frequently, however, they are seen along river banks and on

sea beaches, feeding in company with other species.

DISTRIBUTION

_Range._--Alaska, Asia, Australia, and Oceania; casual in Europe and on

the Pacific coast of North America.

_Breeding range._--The Pacific golden plover breed mainly in Siberia

but, as mentioned under _Pluvialis d. dominica_, they range also to

western Alaska, where they apparently meet and intergrade with their

eastern relatives. The breeding range may be stated as extending north

to eastern Siberia (Yenisei River, Cape Chelyuskin, Liakhof Island,

Nijni Kolymsk, Cape Baranof, Chaun Bay, and Cape Serdze); and Alaska

(Wainwright). East to Alaska (Wainwright, probably Point Hope, probably

Cape Blossom, Cape Prince of Wales, Nome, St. Michael, and Igiak Bay).

South to Alaska (Igiak Bay); and Siberia (Bering Island, Kamchatka, and

the Yenisei River). West to western Siberia (Yenisei River).

_Winter range._--The winter range extends north to India, China, Japan,

and to Hawaiian Islands (Midway, Kauai, and Maui Islands). East to

the Hawaiian Islands (Maui), Polynesia, and New Zealand. South to New

Zealand and Tasmania. West to Tasmania, Australia, Melanesia, Java,

Borneo, and India.

_Migration._--The migration of the Pacific golden plover nesting in

Alaska, appears to be entirely oceanic, the flight in both directions

being without intermediate stops. Nonbreeding individuals frequently

remain all summer in the Hawaiian Islands and at other points in

Oceania.

_Spring migration._--Early dates of arrival are: China, Soochow, April

18, Shanghai, April 21, and Canton, April 30; Japan, Hakodate, May 7;

Siberia, Bering Island, May 15, and Nijni Kolymsk, May 30; and Alaska,

St. Michael, May 2, Bethel, May 8, Portage Bay, May 13, Hooper Bay, May

16, and Cape Prince of Wales, May 19.

_Fall migration._--Late dates of fall departure are: Alaska, mouth of

the Yukon River, October 12, St. Paul Island, October 25, and Attu

Island, October 31; and Siberia, Bering Island, October 28.

_Casual records._--This species has been reported as a casual from

Algeria, Malta, Italy, Spain, Heligoland, Poland, and the British

Isles (B. O. U.). In North America, specimens identified as this race,

have been collected in British Colombia, Comox, November 2, 3, and 4,

1903, and Masset, August 10, 1920; Washington, Kahlotus, December 19,

1924; Idaho, Lake Chatcolet, October 1, 1923; and Maine, Scarborough,

September 11, 1911.

_Egg Dates._--Bering Sea coast of Alaska: 15 records, May 23 to July 1;

8 records, June 11 to 27. Siberia: 5 records, June 30 to July 5.

Life histories of North American shore birds, Part 2 (of 2) · 第 24 / 42 段