THIRD WEEK. IN ‘APRIL 27 
beats of the wings regular. These long-legged 
birds, as just noticed, have much difficulty 
in alighting even on the nest, which offers a 
platform. But when settling on a branch, 
ee TD 
i ~ 
ry, j 
III: Nests of herons in oaks. Two birds standing on 
their nest. 
and especially on the thinner ones of tree 
tops, they experience special difficulty, hav- 
ing to keep poising their wings for even a 
quarter of a minute sometimes, before feeling 
