PARULA WARBLER. BLUE YELLOW-BACKED WARBLER. 



Compsotblypis americana. 



Above light-blue, with a patch of yellow in centre of the back ; 

 chin and throat yellow ; breast yellow, spotted with brown ; belly dull 

 white ; wings brown, with two light bands, some of the feathers edged 

 with blue ; tail brown, some of the feathers edged with blue, and the 

 outer ones spotted near the tips with white ; upper mandible dark, 

 lower one lighter ; legs pale. Length, 4.70 inches. 



Migratory. Arrives middle of May, leaves early in October. Nests in trees. It is not 

 easy to examine this bird, since it not only usually keeps to lofty situations in the tree, but 

 it is exasperatingly restless and active ; at least so will say the observer who, with opera- 

 glass to eye, strives to watch it as it clambers and flutters among the branches and foliage. 

 The best periods for observation are during migration ; for, in common with many 

 Warblers, and some other birds as well, the majority of this species breed farther north. 



The bird student will not have prosecuted his researches for a long period without 

 remarking a fact concerning the migrations of the Warblers which will give a pleasurable 



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