254. Irena puella (Lath.). _The Fairy Blue-bird_.

Irena puella (_Lath._), _Jerd. B. Ind._ ii, p. 105; _Hume, Rough Draft

N. & E._ no 469.

Mr. Frank Bourdillon favoured me with an egg of the Fairy Blue-bird,

which with other rare eggs he obtained on the Assamboo Hills. So

little is known of this range that I quote his remarks upon this

locality.

"I must premise that the specimens were obtained along the Assamboo

Range of hills, between the elevations of 1500 and 3000 feet above

sea-level. This range of hills, running in a north-westerly and

south-easterly direction from Cape Comorin to 8°33' north latitude,

forms the boundary line between Travancore and the British Territory

of Tinnevelly, the average height of the range being about 4000

feet, while some of the peaks are as high as 5500 feet. The general

character of the hills is dense forest, broken here and there by grass

ridges and crowned by precipitous rocks, above which lies an almost

unexplored table-land, varying in width from a mile to 12 or 15 miles,

at an elevation of almost 4000 feet."

"The egg of the Fairy Blue-bird," he adds, "was taken slightly set on

the 28th February, 1873, from a loose sparsely-built nest situated in

a sapling about 12 feet from the ground. The nest was composed of

dead twigs lined with leaves, and was about 4 inches broad and very

slightly indented."

As will be remembered, Dr. Jerdon states that "Mr. Ward obtained, what

he was informed were, the nest and eggs; the nest was large, made of

roots and fibres and lined with moss; and the eggs, two in number,

were pale greenish, much spotted with dusky:" and I have no doubt that

Mr. Ward's eggs were genuine.

The egg is an elongated oval, compressed almost throughout its entire

length, very blunt at both points; a long cone, the apex broadly

truncated and rounded off obtusely, sealed on half a very oblate

spheroid. In no one single point--shape, texture of shell, colour or

character of markings--does this egg approach to those of either the

Oriole or the Chloropsis. This shell is very close-grained and fine,

but only moderately glossy. The ground is pale green, and it is

streaked and blotched with pale dull brown. The markings are almost

entirely confluent over the large end (where they appear to be

underlaid by dingy, dimly discernible greyish blotches), and from the

cap thus formed they descend in streaky mottlings towards the small

end, growing fewer and further apart as they approach this latter,

which is almost devoid of markings.

It is impossible to generalize from a single specimen as to the

position this bird _should_ hold, but this one egg renders it quite

certain to my mind that the nearest allies of _Irena_ are neither

_Oriolus_ nor _Chloropsis_, and that it is quite impossible to place

it with the _Dicruridae_. The eggs of _Psaroglossa spiloptera_ are

not very dissimilar, and I expect that it is somewhere between

the _Paradiseidae, Sturnidae_, and _Icteridae_ that _Irena_ will

ultimately have to be located.

The egg measures 1·1 by 0·73.

Mr. Fulton Bourdillon writes:--"The last note I have to send you at

present is that of a Blue-bird's nest (_Irena puella_). Of this there

can be no possible doubt, as my brother and I shot both the male and

female birds, and I took the nest with my own hands. It was in a

pollard tree beside a stream among some thick branches about 20 feet

from the ground. The nest was neatly but very loosely constructed of

fresh green moss, which formed the bulk of the nest, and lined with

the flower-stalks of a jungle shrub. It was very well concealed, and

was about 4 inches broad with a cavity not more than 1½ inch deep. It

contained two eggs slightly set, measuring respectively 1·11 x ·84 and

1·16 x ·81. These eggs tally very fairly in colour, shape, and size

with those sent last year; of the identity of which I was doubtful at

the time, though now I think there can be no mistake.

"Since writing last I have had another nest of _Irena puella_ brought

me with two fresh eggs. The nest was very loosely put together and

similar in all respects to the one last sent. The eggs measure ·95 x

·81 and ·92 x ·79, with the same well-defined ring round the larger

end. The nest was in a small tree about 10 feet from the ground and

was well concealed. It was composed of twigs, without any lining."

The nest sent me by Mr. Bourdillon is a very flimsy affair, reminding

one much of the nest of _Graucalus macii_ and not in the smallest

degree of that of an Oriole. A mere pad, some 4 inches in diameter,

composed of very thin twigs or dry flower-stalks with a couple of dead

leaves intermingled, and an external coating of green moss.

Major C.T. Bingham has favoured me with the following notes from

Tenasserim:--"At the sources of the Winsaw stream, a feeder of the

Thoungyeen river, on the 30th April I found a nest of this bird, a

mere irregularly roundish pad of moss with very little depression in

the centre, containing two fresh eggs, and placed 12 feet or so above

the ground in the fork of an evergreen sapling. The eggs measure 1·18

x 0·86 and 1·19 x 0·86 respectively, and are so thickly spotted and

blotched with brown as to show very little of the ground-colour, which

latter, however, appears to be of a greenish white.

"On the 11th April I was slowly clambering along a very steep

hill-side overlooking the Queebaw choung, a small tributary of the

Meplay stream, when from a tree whose crown was below my feet I

startled a female _Irena puella_ off her nest. I could see the nest

and that it contained two eggs, so I shot the female, who had taken to

a tree a little above me. On getting the nest down, I found it a poor

affair of little twigs, with a superstructure of moss, shaped into a

shallow saucer, on which reposed two eggs, large for the size of the

bird, of a dull greenish white, much dashed, speckled, and spotted

with brown. They were so hard-set that I only managed to save one,

which measured 1·09 by 0·77 inch."

Mr. Davison writes:--"At Kussoom, in some moderately thin tree-jungle

I found the nest of _Irena puella_. The nest was placed in the fork

of a sapling some 12 feet from the ground. The nest externally was

composed of dry twigs, carelessly and irregularly put together. The

egg-cavity was shallow, not more than 1·5 inch at its deepest part,

and it was lined with finer twigs, fern-roots, and some yellowish

fibre. The nest contained two fresh eggs."

Two eggs, taken by Mr. Davison at Kussoom in the north of the Malay

Peninsula, to which the Malayan form does not extend, are rather

elongated ovals, with a slightly pyriform tendency. The shell is fine,

smooth, and compact, and has a perceptible gloss. The ground-colour is

greenish white; round the large end is a huge, smudgy, irregular zone

of reddish brown and inky grey, the one colour predominating in the

one egg, the other in the other. Inside the zone are specks and spots

of the same colours, and below the zone streaks and spots of these

same colours, thinly set, stretched downwards towards the small end of

the egg.

Other eggs subsequently received are very similar to that first sent

by Mr. Bourdillon, except that in shape they are more regular ovals,

and that the brown markings in some have a reddish and in some a

purplish tinge, and that in some eggs the mottings and markings are

pretty thick even at the small end.

In length they seem to vary from 1·08 to 1·2 inch and in breadth from

0·73 to 0·88 inch.

In some eggs the ground appears to have no green tinge, but is simply

a greyish white. In one egg the markings are all of one colour, a sort

of chocolate-brown, a dense almost confluent mass of mottlings in a

broad irregular zone round the large end and elsewhere pretty thickly

set over the entire surface of the egg. They have always a certain

amount of gloss, but are never very glossy.

The Nests and Eggs of Indian Birds, Volume 1 · 第 122 / 260 题