Our Common Birds and How to Know Them 



M;iy 

 10 to 20. Magnolia Warblers, Bay-breasted Warblers, and Blackburnian Warblers may 



be seen on their northern migrations. Bobolinks, Orchard Orioles, Red- 

 eyed Vireos, Wood Pewees, Scarlet Tanagers, Maryland Yellow-throats, 

 Black-throated Green Warblers, Worm-eating Warblers, Hooded Warblers, 

 Cuckoos, Indigo-birds, Great Crested Flycatchers, Least Flycatchers and 

 Hummingbirds come. 



White-throated Sparrows leave for the north. Hermit Thrushes become less 

 common, most of these also retiring northward. Myrtlebirds also resume 

 their northward journey 



20 to 31. Black-poll Warblers and Yellow-bellied Flycatchers pass, going north. Marsh 

 Wrens appear, and one may hope for an occasional sight of a Cardinal 

 Grosbeak. 



During June, July and August the birds effect little change of locality, as nests have 

 been constructed and the duties of incubation assumed. In many cases young birds have 



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