LIST OF ILLUSTRATIONS. 



Xlll 



FIGURE 



PAGE 



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6L 



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{a) Bill and wing of Baltimore Oriole ; bills of (6) Meadow- 

 lark, (c) Purple Grackle 52 



Bills of (a) Cardinal, (b) Pine Grosbeak, (c) Purple Finch, 



(d) Red Crossbill, (e) Seaside Finch, (/) Goldfinch . . 52 



Bill of Scarlet Tanager 53 



Bill and foot of Cliff Swallow .53 



Head of Cedar Waxwing . 53 



Bill of Loggerhead Shrike 53 



Bill of Blue-headed Vireo 53 



(a) Bill of Tennessee Warbler ; (b) bill, wing, and hind-toe of 



Pine Warbler; bills of (c) Redstart, {d) Water-Thrush; 



(e) Chat 53 



Bill and hind-toe of American Pipit 54 



(a) Bill of Brown Thrasher, (h) bill and wing of Catbird ; 



bills of (c) Carolina Wren, (d) House Wren . . . .54 



Bill and tail of Brown Creeper 54 



(«) Bill of White-breasted Nuthatch, (b) bill and wing of 



Chickadee 55 



(a) Bill and wing of Golden-crowned Kinglet, (b) bill of Blue 



Gray Gnatcatcher 55 



(a) Bill of Robin, (b) bill and wing of Bluebird . . .55 

 First primaries of (a) American Herring Gull, (b) Ring-billed 

 Gull, (c) Laughing Gull, (d) Franklin's Gull, (e) Bona- 

 parte's Gull 69 



First primaries of (a) Caspian Tern, (b) Royal Tern, (c) Com- 

 mon Tern, (d) Arctic Tern, (e) Royal Tern 

 Head of Least Sandpiper . 



Head of Red-backed Sandpiper 



Wing of Solitary Sandpiper 



Head of Semipalmated Plover . 



Head of Wilson's Plover . 



Tail of Sharp-shinned Hawk . 



Tail of Cooper's Hawk 



Primaries of Red-shouldered Hawk , 



Primaries of Broad-winged Hawk 



Foot of Golden Eagle 



Foot of Bald Eagle . 



Tail-feathers of Yellow-billed Cuckoo 



Tail-feathers of Black-billed Cuckoo 



Head of Crested Flycatcher 



Head of Prairie Horned Lark . 



Head of Cowbird .... 



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