327. Dicrurus ater (Hermann). _The Black Drongo_.

Dicrurus macrocercus (_V._), _Jerd. B. Ind._ i, p. 427.

Buchanga albirictus, _Hodgs., Hume, Rough Draft N. & E._ no. 278.

The Black Drongo or Common King-Crow lays throughout India, at any

rate in the plain country; it does not appear to breed either in the

Himalayas or the Nilghiris at any height exceeding 5000 feet.

A few eggs may be found towards the close of April, and again during

the first week of August, but May, June, and July are _the_ months.

It builds usually pretty high up in tall trees, in some fork not quite

at the outside, constructing a broad shallow cup, and lays normally

four eggs, although I _have_ found five. Elsewhere I have recorded the

following in regard to its nidification:--

"Close at our own gate is a pretty neem tree, the '_Melia

azadirachta_,' a species now naturalized in Provence and other parts

of the south of France. High up in a fork a small nest was visible,

and projecting over it on one side a black forked tail that could

belong to nothing but the King-Crow. Of this bird we have already

taken during the last six weeks at least fifty nests, and in many

cases where we had left the empty nest in _statu quo_, we found it a

week later with a fresh batch of eggs laid therein. Many birds will

never return to a nest which has once been robbed, but others, like

the King-Crow and the Little Shrike (_Lanius vittatus_) will continue

laying even after the nest has been _twice_ robbed. The very day after

the nest has been cleared of perhaps four slightly incubated eggs, a

fresh one that otherwise would assuredly never have seen the light is

laid, and that, too, a fertile egg, which, if not meddled with, will

be hatched off in due course. It might be supposed that immediately on

discovering their loss, nature urged the birds to new intercourse,

the result of which was the fertile egg, and this, in some cases, is

probably really the case; Martins and others of the Swallow kind being

often to be seen busy with 'love's pleasing labour' before their eggs

have been well stowed away by the collector. But this will not account

for instances that I have observed of birds in confinement, who

separated from the male before they had laid their full number, and

then later, just when they began to sit deprived of their eggs,

straightway laid a second set, neither so large nor so well coloured

as the first, but still fertile eggs that were duly hatched. But for

the removal of the first set, these subsequent eggs would never have

been developed or laid. Now, the theory has always been that the

contact of the sperm- and germ-cells causes the development and

fertilization of the latter. In these cases no fresh accession of

sperm-cells was possible, and hence it would seem as if in some birds

the female organs were able to store up living sperm-cells, which

only work to fertilize and develop ova in the event of some accident

rendering it necessary, and which otherwise ultimately lose vitality

and pass away without action.

"The nest of the King-Crow that we took was of the ordinary type; in

fact I have noticed scarcely any difference in the shape or materials

of all the numerous nests of this common bird that I have yet seen.

They are all composed of tiny twigs and fine grass-stems, and the

roots of the khus-khus grass, as a rule, neatly and tightly woven

together, and exteriorly bound round with a good deal of cobweb, in

which a few feathers are sometimes entangled. The cavity is broad and

shallow, and at times lined with horsehair or fine grass, but most

commonly only with khus. The bottom of the nest is very thin, but the

sides or rim rather firm and thick; in this case the cavity was 4

inches in diameter, and about 1½ in depth, and contained three pure

white glossless eggs. In the very next tree, however (a mango, and

this is perhaps their favourite tree), was another similar nest,

containing four eggs, slightly glossy, with a salmon-pink tinge

throughout, and numerous well-marked brownish-red specks and

spots, most numerous towards the large end, looking vastly like

Brobdingnagian specimens of the Rocket-bird's eggs. The variation in

this bird's eggs is remarkable; out of more than one hundred eggs

nearly one third have been pure white, and between the dead glossless

purely white egg and a somewhat glossy, warm pinky grounded one, with

numerous well-marked spots and specks of maroon colour, dull-red, and

red-brown or even dusky, every possible gradation is found. Each set

of eggs, however, seems to be invariably of the same type, and we have

never yet found a quite white and a well coloured and marked egg in

the same nest.

"These birds are very jealous of the approach of other birds even of

their own species to a nest in which they have eggs, and many a little

family would this year have been safely reared, and their ovate

cradles have escaped the plundering hands of my shikaries, had not

attention been invariably called to the thereabouts of the nest by the

pertinacious and vicious rushes of one or other of the parents from

near their nest at every feathered thing that; passed them by."

Captain Hutton says:--"This species, which appears to be generally

diffused throughout India, is not uncommon in the Dehra Doon, but does

not ascend the hills; it breeds in June, laying four eggs of somewhat

variable size. They are pure white, thus differing widely from those

of the supposed _D. longcaudatus_ of Mussoorie.

"It is evident likewise that the eggs which Captain Tickell assigns to

this species do not belong to it. (_Vide_ Journal As. Soc. vol. xvii.

p. 304.)

"The nest differs from that of our hill species, being larger and

far less neatly made; it is placed in the bifurcation of the smaller

branches of a tall tree, and is composed exteriorly of two hard

semi-woody stalks of various plants, plastered over with cobwebs.

Another one was constructed entirely of fine roots, like the khus-khus

used for tatties, and plastered over like the former with cobwebs. It

is flattened or saucer-shaped, and about 3 inches in diameter."

Mr. F.R. Blewitt remarks:--"It breeds from the middle of May well into

August. I do not think it has two broods in the year, at least close

observation has not proved the fact. Trees of various sizes are chosen

indiscriminately for the nest, from the lofty mango and tamarind to

the low-growing roonji, &c.

"The nest is a peculiarly slight-formed structure (occasionally I have

seen it otherwise, but this is the exception), always neatly made.

The exterior of the nest is composed of small fine twigs, roots, and

grass, with generally a good deal of spider's web round the outer

surface. The average exterior diameter of the nest is about 5·5

inches. The cavity is frequently lined with horsehair. On three or

four occasions I have seen very fine khus substituted for the hair.

The average inner diameter of the nest is about 3·4 inches.

"The regular number of eggs is four; in colour they are a light

reddish white, with a few spots or blotches, here and there of a

purplish red or red-brown. The eggs often differ much in size.

"I happened to find in one nest two eggs, one of the usual size, the

other only about one third of the size. What is more surprising, it

was perfectly formed, as regards the white and yolk."

The instance of sagacity related by Mr. Phillips, and quoted by

Jerdon, was related to him by the late Mr. Davis, my old Collector of

Customs.

"I have on two or three occasions myself witnessed similar instances

of sagacity. This bird, during the breeding-season, is pugnacious to

a degree, fearlessly attacking every bird that approaches the tree on

which the nest may be."

Writing from the Sambhur Lake, Mr. E.M. Adam says:--"Very common here.

The King-Crow breeds here in June and July. The eggs vary much with

regard to colouring; some are pure white without spots, some have dark

brown spots on the white ground, whilst others have a pale rufous

ground darker at the broader end, with spots of deep rust-colour and

lilac."

Colonel G.F.L. Marshall writes:--"At Bheera Tal, fully 4000 feet

above the sea, I found two nests of this species on the 24th May, one

contained four eggs, and the other three; the eggs varied much in

size, and out of the seven, six were pure white, almost like Barbet's

eggs, and the seventh had only a faint sprinkling of tiny dark spots

at one end. The birds, all four of which I shot, were typical _D.

ater_, with the white spot well developed. On the same day, and in the

same place, I found eggs of _D. longicaudatus_. I record this, as it

is not usual to find _D. ater_ breeding at this elevation. It may be

noticed that the eggs of this species found by Hutton in the Doon

were all pure white, while in the plains I think white is more

exceptional."

Dr. Scully says:--"In Nepal it breeds freely at elevations of from

4000 to 5000 feet. Three nests were taken in the valley, in May and

June; these contained each three or four pure white eggs."

Major C.T. Bingham remarks:--"I have found many nests of the King-Crow

both at Allahabad and Delhi. In both places they begin laying towards

the end of May, and I got fresh eggs at Allahabad as late as the 13th

August. The nests and eggs have been nearly always of the same type.

The former, a shallow, but well-made saucer, rather small sometimes

for the size of the bird, of grass-roots and twigs, and absolutely

without lining; the latter white, when fresh with a pink tinge,

spotted, chiefly at the larger end, rather scantily with claret-colour

and dark brown. I have never found a pure white egg."

Lieut. H.E. Barnes, writing of Rajputana in general, tells us:--"The

King-Crow breeds during May and June. A few nests may be found in

July, but by far the greater number are to be found during the latter

part of May and the commencement of June."

Colonel Butler informs us that "The Common King-Crow breeds in the

neighbourhood of Deesa during the rains. I have taken nests on the

following dates:--

"June 6, 1875. A nest containing 4 fresh eggs.

June 7, 1875. " " 4 fresh eggs.

June 9, 1875. " " 2 fresh eggs.

" " " " 4 young birds.

June 10, 1875 " " 4 fresh eggs.

June 11, 1875. " " 4 fresh eggs.

June 13, 1875. " " 3 fresh eggs.

" " " " 4 fresh eggs.

July 8, 1875. " " 4 fresh eggs.

July 12, 1875. " " 4 fresh eggs.

"The nest consists of a broad shallow saucer about 3½ inches in

diameter measured from the inside, composed of dry twigs and fine

roots, and is invariably fixed in the fork of a tree. The bottom of

the nest, though strongly woven, is often so thin that the eggs are

visible from below. The eggs, usually four in number, are of the

Oriole type, being white or creamy buff:, sparingly spotted and

speckled with deep chocolate or rusty brown, with, occasionally,

markings of inky purple. The markings of the eggs of this species,

like those of the Oriole, are apt to run if washed."

Messrs. Davidson and Wenden, writing from the Deccan, say:--"Common

and breeds."

Mr. Vidal remarks of this bird in the South Konkan:--"Abundant. Breeds

in May."

Mr. Rhodes W. Morgan, writing from South India, says in 'The

Ibis':--"Breeds from March to the end of May, constructing a slight

cup-shaped nest in a tree. The nest is composed of fine twigs bound

together with cobwebs, and is rather a flimsy concern, the eggs often

being visible from below. It is generally placed in the fork of a

branch, at from 10 to 30 feet from the ground. The eggs are three in

number, occasionally only two, and vary very greatly in colour, some

being almost of a pure white, whilst others again are spotted and

blotched, especially at the larger end, with claret and light purple

on a rich salmon-coloured ground. The birds are very noisy in the

breeding-season, keeping all intruders off, not hesitating to attack

Kites and Crows. They seem to have an especial antipathy to the

latter."

Mr. Benjamin Aitken states that in Madras "the King-Crow, so

conspicuous on the backs of cattle, telegraph-wires, &c., all through

the cold and hot seasons, is conspicuous by its absence during the

breeding-season. Many of them retire to woods and gardens to breed,

but even when they do not, they keep very quiet while they have their

nests. Last June there was a nest in a tree in the Thieves' bazaar at

Madras, but the birds hardly ever showed themselves out of the tree."

Mr. J. Inglis informs us that in Cachar "this King-Crow is extremely

common. It breeds all through the summer. It lays four or five pure

white eggs on the top of a few grasses placed in the fork of a tree.

It is very pugnacious, and attacks birds of all sizes if they approach

it."

There are two very distinct types of this bird's eggs. The one pure

white and spotless, the other a pale salmon-colour, spotted with a

rich brownish red. These eggs unquestionably both belong to the same

species, as I have taken them times without number myself and can

positively certify to their parentage; moreover connecting links are

not wanting in a large series. I have one egg perfectly white, with

the exception of three or four blackish-brown spots, another with more

of these spots, another with almost as many as the ordinary spotted

eggs have, the ground-colour in all these being still pure white,

and the spots being blackish or very deep reddish brown. Then I

have others similar to those just described, but showing a faint

salmon-coloured halo round one or two of the largest spots, others in

which the halo is further developed, and others again with the entire

ground-colour an excessively pale salmon throughout, and so on a

complete series gradually increasing in intensity of colour till we

get the pure rich salmon-buff which is at the other end of the scale.

I am particular in this description, because the eggs of this bird

have been a subject of almost as many contradictions between Indian

naturalists as the chameleon of pious memory. In shape the eggs are

typically a rather long oval, somewhat pointed towards one end. Very

much elongated varieties are common, recalling in this respect the

eggs of _Chibia hottentotta_. Spherical varieties, if they occur, must

be very rare, the enormous series I possess containing no example. In

the colour of the ground, as above remarked, there is every possible,

variety of shade between pure white and a very rich salmon-colour. In

the intensity and number of the markings there is an equally great

variety. The markings, always spots and specks, the largest never

exceeding 0·1 inch in diameter, are invariably most numerous towards

the large end, where they are sometimes, though rarefy, slightly

confluent. They vary from only two or three to a number too large to

count, and in colour through many shades of reddish, blackish, and

purplish brown, the latter being rare and abnormal.

The eggs are entirely devoid of gloss, as a rule, though here and

there a slight trace of it is observable. It is this want of gloss

alone that distinguishes some of the larger white, black-spotted

varieties from the eggs of the common Oriole, which they occasionally

exactly resemble not only in shape, colour, and character of marking,

but even (though generally smaller) in size.

In length they vary From 0·87 to 1·15 inch, and in breadth from 0·7

to 0·85, but the average of 152 eggs measured is 1·01 by 0·75 inch. I

have two dwarf eggs of this species not included in the above average

which I myself obtained in different nests, measuring only 0·78 by 0·5

inch, and 0·87 by 0·62 inch.

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