Be'ariiifj Hi/hn'd WhUr-lhrnafrd X Crri/ Finches. 95 
The Rearing of a Hybrid between the White- 
throated and Grey Finches (Spermophila alhigularis 
X S. grisea). 
By R. Suooitt. 
This artirlc is r('all\- a continuation of the arlicle, " Nesting of 
the Gi-ey Finch ' in hist issue (pages 05-7), and was written to appear 
as one article, hut space exigencies did not permit. — Ed. 
In 1914, not having a mate for the hen Grey Finch, I 
put her into a comijartment containing a lot of unpaired 
birds, among them a cock White-throated Pinch {S. 
alhigularis) . 
AlK)ut the middle of June I noticed that she had mated 
with the White-throat, and was anxious to commence nesf- 
building. I transferred them to the division where the Greys 
had successfully reared their young one the previous summer. 
The hen immediately commenced to build in the exact spot 
where she had her nest the year before. 
The construction of this nest occupied no less than 16 
days, and, I fear it would never have been substantial enough 
to hold the eggs, if I had not supplied some short lengths of 
cctton yarn, which were built in with the other materials. 
By the way I would not advise anyone to supply 
materials of this kind for nest building; it is quite dangerous. 
Fortunately no fatal accidents resulted from its use, but I had 
to rescue several small oirds, which were fastened by their 
feet to branches with the cotton, and which would have cer- 
tainly died without assistance. 
Three eggs were laid in this nest, and incubation com- 
menced with the second on July 8th. Two of them hatched 
on July 20th, the other being infertile. 
The White-throated Finch proved to be a much better 
husband and father than the Grey Finch had been. He gave 
a good deal of assistance with the nest-building, he fed the hen 
frequently while she was sitting, and worked very hard for the 
youngsters when they were hatched. 
On August 5th, at the age of sixteen days, one of fhe young 
ones left the nest, the other one unfortunately having died the 
day before. 
