SYNOPSIS OF ORDERS AND FAMILIES. 



ORDER XII. VULTURES, HAWKS, AND OWLS. RAPTORES. 



(4 families, 56 species, 33 subspecies.) 



Generally large birds with hooked bill; strong, heavy feet, and long, 

 curved nails ; wings large; tail rather long, usually square. 



TURKEY VULTURE. 



Family 35. AMERICAN VULTURES. CATHARTICS. 



Bill not strongly hooked; toe-nails comparatively weak; nostrils large, piercing 

 the bill; head and more or less of neck, bare. 



RED-TAILED HAWK. 



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