Nesting Notes fur 1921. 231 
the summer, but I never saw him feed his mate as did the male 
of my first pair. 
They have both mouked now and are in beautiful condi- 
tion. I suspect them, however, of having had a fair number 
of young Diamond Doves for breakfast. 
A cock American Black-headed Siskin (Chrysomitris tris- 
tis) paired with a small Border Canary hen; two clutches of eggs 
were laid, but all were clear. 
Sikhim Siskins, which came from the late Dr. Lovell 
Keays, two years ago have never attempted to nest. There is 
also a pair of Goldfinch x Sikhim Siskin hybrids bred this year 
by Mr. Shore Baily. One of these is now beginning to sing 
very nicely — in fact there is a good deal of rivalry in this respect 
with the American Siskin. 
No. 3 Aviary was used as a receiving room for odd new 
birds. I bought six Crested Tits (Parus cristatiis) in the early 
summer. Notwithstanding every care and plenty of insect food 
these have gradually died off until I have now only one left ; 
they are charming birds and become delightfully tame, but are 
just as difficult to keep for any length of time as the Long-tailed 
Tit (Acrcdula candata). 
I have also a charming Blue-throated Warbler (Cyanecula 
sitccica) in the same aviary, for whom I should much like a mate, 
but do not know the sex of my bird. f suspect that two birds 
of the same sex would fight to the death like robins or redstarts, 
both of which species this bird resembles. 
A viARY No. 4 contained a pair of Orange-headed 
Ciround Thrushes [Gcocichla citrina). two Blue Tits, and a pair 
of Golden-shouldered Whydahs. The last named have been 
here two years and have done nothing, though the male's spring 
moult is striking and interesting. 
The Blue Tits {Parus cacnilciis) are, I think, two old 
males, both very handsome (what would these birds be worth if 
they were rare foreigners?), but ;i];lic)vgli 'diey have never quar- 
relled and have built in a Berlepscli log the last two seasons — no 
egg has been laid. 
My Orange-headed Ground Thrushes (Gcocichla citrina) 
have been my greatest disappointment. 
