Our Common Birds and How to Know Them 



March 



i to 10 Robins, Bluebirds and Song Sparrows come in small numbers. 



10 to 20 These become more plentiful, and Purple Crackles and Red-winged Blackbirds 

 appear. Purple Finches and Flickers receive accessions, and Fox Sparrows 

 may be seen on their northward migration. 



Snowy Owls retire northward. 



20 to 31 All these become still more numerous, Meadowlarks are recruited, and Phoebes 

 and Vesper Sparrows begin to come. 



Pine Finches, Horned Larks, Snow Buntings and Shrikes go north. 



April 

 i to 10 Kingfishers are recruited. Red-headed Woodpeckers pass. Myrtlebirds and 



Ruby-crowned Kinglets appear, though these go farther north in a few 

 weeks. Yellow-bellied Sapsuckers, Cowbirds and Hermit Thrushes 

 arrive. 



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