469. Lanius lahtora (Sykes).
Indian Grey Shrike
Lamus lahtora (Sykes), Jerdon B. Ind. i, p. 400.
Collyrio lahtora, (Sykes), Hume, Rough Draft N. & E. no. 256.
The Indian Grey Shrike lays from January to August, and occasionally up to October,
but the majority of my eggs have been obtained during March or April. It builds,
generally, a very compact and heavy, deep, cup-shaped nest, which it places at
heights of from 4 to 10 or 12 feet from the ground in a fork, towards the centre of
some densely growing thorny bush or moderate-sized tree, the various carounders,
capers, plums, and acacias being those most commonly selected. As a rule it builds
a new nest every year, but it not unfrequently only repairs one that has served it in
the previous season, and even at times takes possession of those of other species.
The nest is composed of very various materials, so much so that it is
difficult to generalize in regard to them. I have found them built
entirely of grass-roots, with much sheep's wool, lined with hair and
feathers, or solidly woven of silky vegetable fibre, mostly that of
the putsun (Hibiscus cannabinus), in which were incorporated little
pieces of rag and strips of the bark of the wild plum (Zizyphus
jujuba); but I think that most commonly thorny twigs, coarse grass,
and grass-roots form the body of the nest, while the cavity is lined
with feathers, hair, soft grass, and the like.
Generally the nests are very compact and solid, 6 or 7 inches in
diameter, and the egg-cavity 3 to 4 in diameter, and 2 to 2½ in depth,
but I have come across very loosely built and straggling ones.
They have at times two broods in the year (but I do not think that
this is always the case), and lay from three to six eggs, four or five
being the usual number.
Mr. F. R. Blewitt, writing from Jhansi and Saugor, and detailing his
experiences there and in the Delhi Districts, says:
"The Common Indian Grey Shrike breeds from February to July; it builds
on trees; if it has a preference, it is for the close-growing roonj
tree (Acacia leucophlaea). I have particularly noticed this fact
both here and at Gurhi Hursroo (Delhi). The nest
in structure is neat and
compact (though I have occasionally seen some very roughly put
together), and generally-well fixed into the forks of an off-shooting
branch. In shape it is circular, varying from 5 to 7½ inches in
diameter, and from 1½ to 3½ inches in thickness; thorn twigs, coarse
grass, grass-roots, old rags, etc. form the outer materials of the
nest, and closely interwoven fine grass and roots the border-rim. The
egg-cavity is deeply cup-shaped, from 3½ to 5 inches in diameter, and
lined with fine grass and khus; exceptionally shreds of cloth are
interwoven with the khus and grass.
"On one occasion I got a nest with the cup interior entirely lined
with old cloth pieces, very cleverly and ingeniously worked into the
exterior framework. Five is the regular number of eggs, though at
times six have been obtained in one nest. The birds often make their
own nests each year, but this is not invariably the case. When at
Gurhi Hursroo in February last, I found on an isolated roonj tree four
nests within a foot of each other. The under centre one, an old
Shrike nest (the other three were of other birds), was occupied by
a Shrike sitting on five eggs. I very carefully examined it, and my
impression at the time was that the parent birds had returned, to rear
a second progeny, to the nest constructed by them the year previous.
"I do not know whether you have noticed the fact, but both L.
lahtora and L. erythronotus often lay in old nests, of which they
first carefully repair the egg-cavity with new materials. It is not
only, however, in old nests of their own species that these birds
make a home in the breeding-season. At times they take possession of
fabrics clearly not the work of any Shrike. Quite recently I found a
pair of L. lahtora with four eggs in a small nest entirely woven of
hemp, the bottom of which was thickly coated with the droppings of
former occupants. Again, on the 8th June, a nest with four eggs was
found on a roonj tree. This wonderful nest, which I have kept, is
entirely composed of what I take to be old felt and feathers, the
bottom of the cavity of which, when found, was almost covered with the
dung of young birds.
"Evidently this nest was not originally made by the Shrike, but, as
would appear, was taken possession of by it, after the brood of some
other species of birds had left it."
Mr. W. Theobald makes the following note of this bird's breeding
in the neighborhood of Pind Dadan Khan and Katas in the Salt
Range: "Lays in the last week of March to the end of April. Eggs five
only, shape ovato-pyriform, size 1·06 inch by 0·8 inch; colour pale
greenish white, blotched and tinged with yellowish grey and neutral
markings; vary much in intensity and colour. Nest of twigs, lined with
cotton or wool, and usually placed in stiff thorny bushes."
Lieut. H. E. Barnes, writing from Chaman in Southern Afghanistan,
remarks: "The Grey-backed Shrike is extremely common, breeding about
the end of March, in much the same situations as in India. I have
collected many specimens, and failed to detect any difference between
the Indian bird and the one found here. The average of twelve eggs is
·97 by ·75."
He adds subsequently: "This is the commonest Shrike in the country;
it breeds in March and April, and the young are easily reared in
captivity."
Mr. W. Blewitt says that he "took four nests of this bird near Hansi
on the 28th-30th March; they contained, one 5, two 4, and one 3
eggs; all but the latter (which, curiously enough, were a good deal
incubated) quite fresh. The nests were placed in acacia and caper
bushes, at heights of from 6 to 14 feet from the ground; they were
from 6 to 7 inches in diameter exteriorly, rather loosely constructed
of thorny twigs, with egg-cavities from 2 to 2½ inches deep, lined
with fine straw and leaves." Again he writes: "Took numerous nests in
the neighborhood of Hansi during the month of July; most of the eggs
were much incubated, and four was the largest number found in any one
nest.
"The nests were all placed upon Kikar trees at an average height of
some 10 feet from the ground; they were composed of thorny twigs,
some with and some without a lining of fine grass and feathers, and
averaged some 5 or 6 inches in diameter by 2 to 4 inches in depth."
Major C. T. Bingham says that "this bird is excessively common about
Delhi, far more so than at Allahabad. At the latter place I only found
it breeding in March and April, but at Delhi I have found nests in
every month from March to August. One evening in June I remember
counting in my walk thirteen nests within the radius of a mile; some
of these contained fresh eggs, some hard-set, some young. One nest I
robbed in April of eggs contained young in the latter end of May, and
I believe many of them have two if not more broods in the year. All
nests that I have seen have been well made, firm, deep cups of babul
branches, lined with grass-roots, and occasionally with bits of rag
and tow. The eggs are broad ovals of a dead chalky bluish-white
colour, spotted, chiefly at the large end, with purple and brown. Five
is the greatest number of eggs I have found in a nest."
Mr. George Reid informs us that this Shrike breeds from March to
July in the Lucknow Division, making a massive nest in babul trees,
generally in solitary ones on open plains.
Colonel Butler writes: "The Indian Grey Shrike breeds in the
neighborhood of Deesa in February, March, April, May, June, and July.
I nave taken nests on the following dates:
"Feb. 19. A nest containing 4 slightly incubated eggs.
March 13. " " 4 fresh eggs.
" 16. " " 4 "
" 19. " " 4 "
" 20. " " 3 "
" 20. " " 4 "
" 28. " " 4 incubated eggs.
April 9. " " 4 " "
June 1. " " 2 fresh eggs.
" 7. " " 4 young birds.
" 7. " " 2 incubated eggs.
July 9. " " 4 " "
"The nest is usually placed in some low, isolated leafless thorny tree
(Acacia, Zizyphus,
etc.), from six to ten feet from the ground. It
is solidly built of small dry thorny twigs, old rags, etc. externally, with a
thick felt lining of the silky fibre of Calotropis gigantea.
The eggs vary a good deal in shape, some being much more pointed at
the small end than others; some I have are almost perfect peg-tops.
They vary in number from three to five; and as a rule the colour is a
dingy white, spotted and speckled sparingly all over with olive-brown
and inky purple, which together form a well-marked zone at the large
end."
Messrs. Davidson and Wenden remark: "Common, and breeds abundantly in
the Poona and Sholapoor Collectorates at the end of the hot weather.
W. has noticed it breeding at Nuluar and Raichore. Davidson observed
that it was very rare in the Satara Districts."
Mr. J. Davidson further informs us that L. lahtora is a permanent
resident in Western Khandeish, and breeds in every month from January
to July.
My friend Mr. Benjamin Aitken furnishes me with the following
interesting note: "You say that the Indian Grey Shrike lays from
February to July. Now, in Berar, where this bird is very common, I
have found their eggs frequently in the first week of January, and
on not only to July, but to September; and I once found a nest in
October. I was never able to satisfy myself that the same pair had two
broods in the year, but I scarcely think there can be any doubt about
the matter. I once found, like your correspondent Mr. Blewitt, four
nests in a small babul tree, and only one of them occupied. This was
at Poona. My brother first pointed out to me that this species affects the
dusty barren plain, whereas L. erythronotus prefers the cool and
shaded country. This difference in the habits of the two birds is very
observable at Poona, where both species are exceedingly common. Where a
jungly or watered piece of country borders upon the open plain,
you may see half a dozen of each kind within an area of half a mile
radius, and yet never find the one trespassing upon the domain of the
other. When you say you have never found a nest more than 1500 feet above the
level of the sea, I would remind you that although L.
lahtora never ascends the hills, it is yet very abundant in the
Deccan, which is 2000 feet above the sea-level.
"I think I have written to you before that during a residence of twelve
years I never saw L. lahtora in Bombay."
This Shrike is, however, essentially a plains bird, and never seems
to ascend the Himalayas to any elevation. I have never myself found a
nest more 1500 feet above the level of the sea.
Typically, the eggs are of a broad oval shape, more or less pointed
towards one end, of a delicate greenish-white ground, pretty thickly
blotched and spotted with various shades of brown and purple markings,
which, always most numerous towards the large end, exhibit a strong
tendency to form there an ill-defined zone or irregular mottled cap.
The variations, however, in shape, size, colour, extent, and intensity
of markings are very great; and yet, in the huge series before me,
there is not one that an oologist would not at once unhesitatingly
set down as a Shrike's. In some the ground-colour is a delicate pale
sea-green. In some it is pale stone-colour; in others creamy, and in a
few it has almost a pink tinge. The markings, commonly somewhat dull
and ill-defined, are occasionally bold and bright; and in colour they
vary through every shade of yellowish, reddish, olive, and purplish
brown, while subsurface-looking pale purple clouds are intermingled
with the darker and more defined markings. In one egg the markings may
be almost exclusively confined to a broad, very irregular zone of bold
blotches near the large end. In others the whole surface is more or
less thickly clotted with blotches and spots, so closely crowded
towards the large end as almost wholly to obscure the ground-colour
there. As a rule, the markings are irregular blotches of greater or
less extent, but occasionally these blotches form the exceptions, and
the majority of the markings are mere spots and specks. In some eggs
the purple cloudings greatly predominate; in others scarcely a trace
of them is observable. Some eggs are comparatively long and
narrow, while some are pyriform and blunt at both ends; and yet,
notwithstanding all these great differences, there is a strong family
likeness between all the eggs. In size they are, I think, somewhat smaller
than those of L. excubitor. They vary in length from 0·9 to
1·17 inch, and in width from 0·75 to 0·83 inch; but the average of
more than fifty eggs is 1·03 by 0·79 inch.
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