BIRDS OF NORTH AND MIDDLE AMERICA 691 



buffy, or ochraceous spots across lower hindneck, the tail with a broad 

 subterminal band of black; primaries black, their inner webs with 

 whitish transverse spots; underparts whitish to deep buff, longi- 

 tudinally streaked or striped with brown. Adult females brown 

 above, the tail usually with a greater or less number of narrow bands 

 of lighter color. Young (of both sexes) similar to adult females, but 

 darker or else tinged above with ochi-aceous or rusty. 



Range. — Northern Hemisphere, migrating, more or less, to Southern 

 Hemisphere. (Two species.) 



FALCO COLUMBARIUS COLUMBARIUS Linnaeus 



Eastern Pigeon Hawk 



Adult male. — Forehead, crown, occiput, scapulars, interscapulars, 

 upper back, lesser and median upper wing coverts slate to blackish 

 slate, becoming lighter to slate gray on the greater upper wing coverts, 

 outer webs of the inner secondaries, the lower back, rump, and upper 

 tail coverts, each feather with a distinct black shaft stripe; feathers 

 of the nape whitish washed with pinldsh buff to pale cinnamon, broadly 

 tipped with slate to blackish slate, producing a mottled nuchal band; 

 feathers of the forehead and of the lateral edges of the cro^vn grayish 

 white to pale cinnamon-buff, forming an indistinct frontal line and a 

 (usually) fairly definite superciliary stripe on either side; primaries 

 and outer secondaries fuscous-black to chaetura black crossed to the 

 inner edge by fairly broad white bars or at least transverse spots on 

 the inner web (the outermost primary with 7-8 such white marks); 

 third primary from outside the longest, then the second, fourth, and 

 first, the two outermost ones abruptly incised on the inner edges, the 

 second and third sinuated on the outer web; rectrices same color as 

 the lower back and rump, tipped with white, very broadly (25-35 mm.) 

 subterminally banded with black, anterior to which are three or four 

 somewhat irregular but fairly complete narrower bands of the same 

 (5-12 mm. wide), these bands generally broadening along the shaft, 

 and often becoming conterminous in a shaft stripe of the same; lores 

 whitish with fine blackish hairlike plumes; cheeks and auriculars 

 whitish, more or less washed with pale cartridge buff to pale cinna- 

 mon, the individual feathers mth black shaft stripes, producing a 

 finely streaked appearance; chin and upper throat white to pale 

 cartridge buff to very pale pinkish buff, either immaculate or with 

 very fine dusky terminal shaft streaks; lower throat, breast, sides, 

 flanks, and abdomen similar, but more heavily tinged with cinnamon 

 and with broad fuscous shaft streaks, widest on the flanks where they 

 sometimes broaden into two or three incomplete bars on each feather; 

 thighs, lower abdomen, and under tail coverts more intensely tinged 

 with pinkish cinnamon, especially the thighs, which are sometimes 



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