246 ANIMAL INTELLIGENCE 
After the first month of existence comparison with 
the dog, cat, and allied creatures ceases to be suggestive. 
The rodents are left quite behind. They seem capable 
of little education either by man or by nature. In 
other words, they get little from experience beyond 
that which strengthens their instincts and emphasises 
their simple psychic life. 
During this rapid psychic development, physical 
changes of an equally rapid and decided character take 
place, and are undoubtedly correlated with the psychic 
changes. 
VL—Tue PIGEON—THE Domestic FowL. 
The Pigeon. 
So far as I am aware, no investigations on birds of 
the kind set forth in this paper have been made, except 
in the case of the domestic fowl and the pheasant. As 
my observations on the pigeon are the most complete, 
they will be recorded first. 
I have bred a large variety of pure-bred pigeons for 
many years, and have kept notes on a considerable 
number of subjects relating thereto, but the following 
are the most complete consecutive records bearing on 
the psychic development of pigeons that I have made, 
and are accompanied with a fairly complete account of 
contemporaneous physical changes; and I trust that 
so long an acquaintance with pigeons may be some 
guarantee of correct observation and interpretation. 
majority showed distinct ‘character.’ I selected the two in which 
this was most marked. One associated himself with my cats and 
fowl, and protected the young chicks. by driving away strange cats. 
The other associated with the family and children, and its actions to 
me were those of a very attached dog. It appeared to take an interest 
in everything I did, sat beside me when I was analysing, and moved 
among my apparatus with the caution so often noticeable in the cat.” 
