424 APPENDIX. 



13. ) '50 long. Hummingbird. 22,1. 



[The eggs of the buzzard-hawks and of Traill's Flycatcher may sometimes be 

 white. See 11, A, d.} 



(c). Nest on the ground, or very near it. 



1. Av. 1-80X1'36. Occasionally marked. Marsh Hawk. 27,1. 



2. Av. 1-50X1-30. Normally, almost spherical. Short-eared Oivl. 26, II, B. 

 (3). Av. 1-20X'90. Blue-tinged, and nearly elliptical. Least Bittern. 



4. Av. l-20Xl'00. White, often stained, and almost pointed at one end. Quail. 31. 



5. Av. -70X'55, usually marked. Nest built near water. Yellow Throat. 9, II, A. 



(d). Nest about buildings (2, 3, 6, usually in bird-boxes, 4 in chimneys). 

 (1). >1-50X1'25. Impure white. Barn Owl. 26,1. 



2. >-85X'65. Purple Martin. 12, V. 



3. < -80X60. White-bellied Swallow. 12,111. 



4. Av. -70X'40. Chimney Swift. 21,1. 



5. Av. -75X'57. Nest built on beam, or under eaves. Pewee. 19,111. 



(6). Av. -80X'60, usually blue. Bird with chestnut breast. Blue Bird. 2,1. 



(e). Eggs laid in a burrow in a bank of sand or sometimes gravel. 



1. > 1-25X1-00. Kingfisher. 23,1. 



2. < l-OOX-75. Bank Swallow. 12, IV. 



(/). Nest built among reeds, or in tall meadow-grass. 

 1. Eggs small and brittle. Short-billed Marsh Wren. 7, II, A. 



(g). Nest very bulky, and built of sticks on cliffs. 



(1). > 3-00X2-25. Impure white; usually marked. Golden Eagle. 27, VII. 



B. Color, blue, bluish-green, or greenish-blue, dark in "5 " only, 

 (a). Nest made in trees (or bushes). 



(1). 2-25Xl'75 or more. Extremely light. Occasionally marked. Goshawk. 27, IV. 

 8. Av. 1-15X'85. Bird with reddish or dun breast, unmarked. Robin. 1, 1, F. 



3. 1-00X70 or more. Bird's breast thickly spotted. Tail, dusky-olive. Wood 



Thrush. 1, 1, A. 



4. Av. -85X'60. Bird, soft reddish-brown above, slightly spotted beneath. 



Wilson's Thrush. 1, 1, B. (Nest generally on the ground.) 



5. Av. -90X'65. Dark emerald green. Nest often in thicket. Cat-bird. 1, II, B. 

 (6). -95X65, light blue, rf, dark blue; ? , warm brown and flaxen. Blue Grosbeak. 



15, XXI. 



7. 1-15X-87, usually dull. ( Nest loose and frail, j Black ( -billed j24,I,B. 



8. Av. 1-25X'87, rather light. ( Eggs long or elliptical, i Yellow ( Cuckoo. 24, 1, A. 



(6). Eggs laid in a hollow tree or post, or in a bird-box. 



1. Av. -80X60. Blue Bird. 2,1. 



(c). Nest made on the ground. 



(1). Av. < -75X'55 ? Nest made in dry fields. Black-throated Bunting. 15, XIX. 



2. > -75X-55. Nest made in wet woods, etc. Wilson's Thrush. 1, 1, B. 



(d). Nest about buildings. 

 1. Av. I-ISX'85. Robin. 1,1, P. 



