March 
1 to 10 
10 to 20 
20 to 31 
April 
1 to 10 
Our Common Birds and How to Know Them 
Robins, Bluebirds and Song Sparrows come in small numbers. 
These become more plentiful, and Purple Grackles 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. 
All these become still more numerous, Meadowlarks are recruited, and Phaebes 
and Vesper Sparrows begin to come. 
Pine Finches, Horned Larks, Snow Buntings and Shrikes go north, 
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, 
