510. Graucalus macii, Lesson. _The Large Cuckoo-Shrike_.

Graucalus macei, _Less., Jerd. B. Ind._ i, p. 417; _Hume, Rough Draft

N. & E._ no. 270.

My friend Mr. F.R. Blewitt seems to be the only ornithologist who

has taken many nests of the Large Grey Cuckoo-Shrike. I never was so

fortunate as to find one. He says:--"This Shrike begins to pair

about May, and in June the work of nidification commences. The place

selected for the nest is the most lofty branch of a tree, and is built

near the fork of two outlying twigs. If this bird has a preference it

would appear to be for mango and mowa trees, on which I found most of

the nests. The nest is in form circular, and its exterior is somewhat

thickly made; the interior is moderately cup-shaped. Thin twigs and

grass-roots are freely used in its construction, while the outer

part of the nest is somewhat thickly covered with what appears to be

spider's web. Altogether the nest, considering the size of the birds,

is of light structure. I am sorry I did not take the dimensions of

each nest secured, but I sent you two very perfect ones. I found the

first eggs in the beginning of July. They are of a dull lightish

green, with brown spots of all sizes, more dense towards the large

end. The maximum number of eggs is three. The bird breeds from June to

August."

The nests which Mr. Blewitt sent me remind one a good deal of those

of the _Dicruri_. They are broad shallow saucers, with an egg-cavity

about 3 inches in diameter, and ¾ inch in depth, composed in the only

two specimens that I possess of very fine twigs, chiefly those of the

furash (_Tamarix orientalis_). Exteriorly they are bound round with

cobwebs, in which a quantity of lichen is incorporated. The nests are

loose flimsy fabrics, which but for the exterior coating of cobwebs

would certainly never have borne removal.

Dr. Jerdon remarks:--"I once obtained its nest and eggs. The nest was

built in a lofty casuarina tree, close to my house at Tellicherry; it

was composed of small twigs and roots merely, of Moderate size, and

rather deeply cup-shaped, and contained three eggs, of a greenish-fawn

colour, with large blotches of purplish brown."

Professor H. Littledale writing from Baroda says:--"The Large

Cuckoo-Shrike is a permanent resident here. I found six nests last

August near Baroda, each with one egg; and my men found a nest

building in the Police Lines at Khaira on the 10th October."

Mr. J. Davidson informs us that "a pair of _Graucalus macii_ were

apparently breeding near this place (the Kondabhari Ghât). He found a

nest with two young in the previous September near the same place."

Mr. G.W. Vidal, referring to the South Konkan, says:--"Common; breeds

in February and March."

A nest that was placed in the fork of a bough was composed entirely

of slender twigs, the petioles of some pennated-leaved tree, bound

together all round the outside with abundance of cobwebs, so that

notwithstanding the incoherent nature of the materials the nest was

extremely firm. It is a shallow saucer quite of the Dicrurine type,

with a cavity 3 inches in diameter and barely 0·75 in depth.

The eggs are typically of a somewhat elongated oval, a good deal

pointed towards one end, but some are broader and more of a typical

Shrike shape. The eggs are of course considerably larger than those of

_Lanius lahtora_. The shell is compact and fine, and faintly glossy.

The ground-colour is a palish-green stone-colour, greener in some, and

somewhat more creamy in others. The markings are very Shrike-like, and

consist of brown blotches, streaks, and spots, with numerous clouds

and blotches of pale inky-purple, which appear to underlie the brown

markings. The markings in some eggs are all very faint, and, as it

were, half washed out, while in others they are very bright and clear.

In some these are comparatively sparse and few; in others close-set

and numerous, especially in a broad zone near the large end; but this

zone is by no means invariably present; in fact, not above one in five

eggs exhibit it. There is something in these eggs which reminds one

of some of the Terns' eggs; and although, when compared with a large

series of _L. lahtora_, individuals of this latter species may be

found resembling them to a certain extent, I do not think that at

first sight any zoologist would have felt sure that they _were_

Shrike's eggs.

They vary in length from 1·12 to 1·41 inch, and in breadth from 0·8 to

0·95 inch, but the average of eight eggs is 1·26 by 0·9 inch nearly.

Subfamily ARTAMINAE.

The Nests and Eggs of Indian Birds, Volume 1 · 第 234 / 260 题