THE PERCHING Brrps. 93 
swaying on the slenderest stems they can grasp, and 
as you approach they dart away with a wavy flight 
and twittering to the time of their wing-beats. Go in 
August to the same field, and about the same rank but 
now green growths you will find these same birds, 
but the males in less shabby clothes, having now a 
smart yellow and shiny black suit. Startle them and 
you will have the same performance,—undulatory 
flight and a song to match it. It is seldom that you 
find one alone. They have a most hearty apprecia- 
tion of the merits of their kind, and often half a hun- 
dred will be found together. Given an old field with 
plenty of blooming thistle, and the Yellow-birds 
thank you for the paradise. 
In autumn there comes down to us from more 
northern regions another of these yellow-birds, but 
it is never bright yellow, and when in the Middle 
States is as much like the preceding as two peas ina 
pod. It has, of course, a variety of common names, 
when not confounded with the common or resident 
species, as Pine-linnet, Pine-siskin, and Pine-finch. 
All these names refer to the same sort of tree, but 
the bird itself is really not so particular and has 
equal fondness for other tall trees, if they will pro- 
vide it any food, and some of them appear to do so. 
At times, too, a huge flock of them will descend to 
a rank growth of weeds. A heavy snow-fall tames 
them, of course, and I once fed a large flock for four 
days with bread-crumbs, which they ate greedily ; so 
greedily, indeed, that their husky twitter I translated 
as give me more, give me more, 
In the beautiful Snow-bunting or Snow-flake, as 
