Mr. Gammie says:--"I have only as yet found a single nest of this
species, and this was one of the most artfully concealed that I have
ever seen. I found it in forest in the Chinchona reserves, at an
elevation of about 5000 feet, on the 14th May. It was a rather deep
cup, composed of moss and fine root-fibres and thickly lined with the
latter, and was suspended at a height of about six feet amongst the
natural moss, hanging from a horizontal branch of a small tree, in
which it was entirely enveloped. A more beautiful or more completely
invisible nest it is impossible to conceive. It contained three fresh
eggs. The cup itself was exteriorly 3·7 inches in diameter and 1·9 in
depth, while the cavity was 2·5 in diameter and 1·5 in depth."
The Yellow-naped Ixulus breeds, according to Mr. Hodgson's notes,
in the central region of Nepal and the neighbourhood of Darjeeling,
laying during the months of May and June. It builds on the ground
in tufts of grass, constructing its nest of moss and moss-roots,
sometimes open and cup-like and sometimes globular, and lining it with
sheep's wool. Mr. Hodgson figures one nest suspended from a branch,
and although neither the English nor the vernacular notes confirm
this, it is supported to a certain extent by Mr. Gammie's experience.
At the same time, though the situation and surroundings of both seem
to have been similar, Mr. Hodgson figures his nest, not cup-shaped,
but egg-shaped, and with the longer diameter horizontal. Seven nests
are recorded as having been taken, and all on the ground. One,
cup-shaped, taken on the 7th June, 1846, which is also figured, in
amongst grass and leaves on the ground, measured externally 3·5 inches
in diameter, 2·5 in height, and internally 2 inches both in diameter
and depth.
The full complement of eggs is said to be four. Two types of eggs are
figured, both rather broad ovals, measuring about 0·75 by 0·6. The one
has a buffy-white ground and is thinly speckled and streaked, except
quite at the broad end, where the markings are nearly confluent, with
pale dingy yellowish brown; the other has a pale earthy-brown ground,
and is spotted similarly to the one just described, but with red and
purple. This latter egg appears on the same plate with the suspended
nest, and is, I think, doubtful.
Several nests of this species, which I owe to Captain Masson of
Darjeeling, are very beautiful structures, moderately shallow and
rather massive cups, externally composed of moss, and lined thickly
with fine black moss-roots. The cavity of the nests may have been
about 1¾ inch in diameter by less than 1½ inch in depth, but the sides
of the nests are from one inch to 2 inches in thickness, constructed
of firmly compacted moss.
Other nests of this species that have since been sent me show that
the bird very commonly suspends its nest to one or two twigs, not
unfrequently making it a complete cylinder or egg in shape, with the
entrance at one side, but always using moss, in some cases fine, in
some coarse, according to the nature of the moss growing where the
nest is placed, as the sole material, and lining the cavity thickly
with fine black moss and fern-roots.
Dr. Jerdon tells us that at Darjeeling he has repeatedly had the nest
brought to him. "It is large, made of leaves of bamboos carelessly and
loosely put together, and generally placed in a clump of bamboos. The
eggs are three to five in number, of a somewhat fleshy-white, with a
few rusty spots."
I cannot but think that in this case wrong nests had been brought
to Dr. Jerdon. The eggs that I possess are all of one type--rather
elongated ovals with scarcely any gloss, and strongly recalling in
shape, size, and appearance densely marked varieties of the eggs of
_Hirundo rustica_, but with the markings rather browner and slightly
more smudgy.
The eggs are typically rather elongated ovals, often slightly
compressed towards the small end, sometimes rather broader and
slightly pyriform. The shell is extremely fine and compact, but
has scarcely any gloss; the ground-colour is sometimes pure white,
sometimes has a faint brownish-reddish or creamy tinge. The markings
are invariably most dense about the large end, where they form a
zone or cap, regular, well defined and confluent in some specimens,
irregular, ill-defined and blotchy in others. As a rule these
markings, which consist of specks, spots, and tiny blotches, are
comparatively thinly scattered over the rest of the egg, but
occasionally they are pretty thickly scattered everywhere, though
nowhere anything like so densely as at the large end. The colour of
the markings is rather variable. It is a brown of varying shades,
varying not only in different eggs, but there being often two shades
on the same egg. Normally it is I think an umber-brown, yellower in
some spots, but varying slightly in tinge, leaning to burnt umber,
sienna, and raw sienna.
Other eggs subsequently obtained by Mr. Gammie are of much the same
character as those already described, but one is a good deal shorter
and broader, and the markings are more decided red than are some of
the yellowish-brown spots observable in the eggs first obtained.
In length the eggs seem to vary from 0·76 to 0·8, and in breadth from
0·54 to 0·58.
Subfamily LIOTRICHINAE.