258 ANIMAL INTELLIGENCE 
The sense of support is very fully developed almost 
or quite from the beginning. 
Voice is present in a few days after hatching. 
Motor co-ordinations peculiar to birds, and the power 
of recognising their own nest, parents, etc., are gradually 
but well developed. 
Physical changes peculiar to this group of birds, and 
with modifications for each variety, occur at fairly 
definite periods, are closely related in time, and are 
probably in some way bound up with psychic changes. 
The Domestic Fowl. 
This bird is so different in many respects from the 
pigeon, that I have thought it better to keep the notes 
I have taken apart. 
These observations were made on pure-bred Anda- 
lusian chicks, though many others have been studied. 
Dary. 
Chick A, hatched out some time before daylight, is 
taken from the nest for the first time, and tested at 
4.30 P.M. 
It pecks three times in succession at a very small 
speck on the table, and fowches it each time. It strikes 
a crumb about a 4 inch in diameter two or three times, 
and then swallows it. 
Soon after it pecks at a smaller crumb, and takes it 
up and swallows it on the first attempt. 
It also pecks accurately at a dark spot on the table. 
Ohick B, of about the same age (same hatch), picks 
up bread-crumbs and particles of hard-boiled yolk of 
ege without missing. 
