SOME BIRDS THAT COME IN MAY 409 
Then a little bird smaller than a Chippy flits out with a 
bit of green worm hanging from his beak and disappears in 
another tree. Brief as the glimpse is, you see that the 
bird is rich olive-yellow, with cinnamon streaks on the 
breast. If he pauses a moment, you will notice that 
the underparts are almost the colour of gold. This is the 
Yellow Warbler of many names, — Wild Canary, Summer 
Yellowbird, or simply Yellowbird; though this name 
is also commonly given to the seed-eating Goldfinch of 
the Sparrow tribe who wears a jaunty black cap, and 
stays with us all the year, while the Yellow Warbler goes 
southward before leaf-fall in September. 
“The Yellow Warbler’s nest is one of the most beautiful 
and interesting bird-homes, and shares the fame of that 
of the Baltimore Oriole, Wood Pewee, Humming-bird, and 
Vireo. It is cup-shaped and deep, woven of fibres and 
plant-down, and is placed in the fork of a bush or ina fruit 
tree, where it is as firmly lashed by cords of vegetable 
fibre and cobwebs. The female is the builder and a very 
rapid workwoman. This nest is often used by the Cow- 
bird, but little Mrs. Yellow Warbler is more clever than 
many other small birds and refuses to be imposed upon. 
She is evidently afraid to push out the alien egg, so she 
swiftly walls it in by building a second nest on top of the 
first. If this does not check the Cowbird, a third nest is 
sometimes added, like the one that Tommy brought me 
last fall, and there is a two-story nest in Goldilocks’ 
cabinet. 
“This Warbler is not only beautiful to look at and 
pleasant to hear, but he is a very valuable tree trapper, 
for he eats the spinning cankerworms and also tent-cater- 
