242 
BIRD-LIFE. 
and simply confined to only a few of a class, will 
help to show us the exquisite adaptability of the 
mechanism of the feathered tribe. The examples given 
speak for tliemsleves, and any further remarks would be 
superfluous. If I were to enlarge upon this subject in 
detail, I should have to speak severally of the different 
groups; I could not, however, prove more than I have 
already done in what has gone before. 
