10 OBJECTIVE SEASONAL LESSONS. 
present a month or more before beginning to nest, 
but those that come in May may be found nest- 
building within a few days after their arrival. 
List or SuMMER RESIDENTS. 
Laughing Gull.* 
‘Common Tern.* 
~ Wood Duck.* 
Great Blue Heron.* 
Little Green Heron. 
Black-crowned Night 
Heron. 
American Bittern.* 
Least Bittern. 
Clapper Rail. 
King Rail.* 
Virginia Rail.* 
Woodcock, 
Spotted Sandpiper. 
Killdeer.* : 
Mourning Dove. 
Osprey. 
Barn Owl.* 
Yellow-billed Cuckoo, 
Black-billed Cuckoo. 
Belted Kingfisher. 
Nighthawk. 
Whip-poor-will. 
Chimney Swift. 
Ruby-throated Humming- 
bird. 
Kingbird. 
Crested Flycatcher. 
Phoebe. 
Least Flycatcher. 
Acadian Flycatcher, 
Wood Pewee. 
Baltimore Oriole. _ 
Orchard Oriole. 
Red-winged Blackbird. 
Purple Grackle. 
Bobolink. 
Meadowlark. 
Cowbird. 
Grasshopper Sparrow. % 
Henslow’s Sparrow.* 
Swamp Sparrow. 
Field Sparrow. 
Vesper Sparrow. 
Chipping Sparrow. 
Rose-breasted Grosbeak. 
Towhee. 
Indigo Bunting. 
Scarlet Tanager. 
Barn Swallow. 
Rough-winged Swallow.* 
Cliff Swallow. 
Bank Swallow. 
Tree Swallow. 
Purple Martin. 
Red-eyed Vireo, 
Warbling Vireo. 
Yellow-throated Vireo, 
White-eyed Vireo. 
Black and White War. 
bler. 
Blue-winged Warbler. 
Worm-eating Warhler.* 
Yellow Warbler. 
*Not common. 
