l“Aer()NS, HAWKS, EAGLES, l<l'l‘(‘. 209 354a. F. r. gy'rfalco (1.01m. (intl-‘AU‘UNxWlll'ttll streaked with huily white and t'nseous or Mack: hack Varying; from ln'ow'nish gray to slaty t'useons, wit/tout complete hars and sometimes entirely unluarred: tail of the same color as the l!:|1‘l{. with indistinct or incomplete lighter liars, umler parts heavily streaked with whitish and t'uscous. 1mm (37" Northern liurope and arctic America. from northern Lahrador and coasts et' lltulson [Say to Alaska"; casually south in winter to ll. l. 3541). F. r. obsoletus (Gr/101.». BLAH: ('rriu'.-\LeoN.—l'pper parts uniform slaty l‘useous, wit/taut har. tail the same. without or with only broken hars', under parts 01' the same color as the back, the feathers with partly concealed huti)‘ spots, 181([1f/(fi’14lll1l‘zltlttl‘: southward in winter. casually to Long Island. Il't'I/t/lrlt‘x. Gyrtaleous are so rare in collections that the descriptions here given can not be considered as applying to the species as a whole, hut rather to the individuals from which the descriptions were taken. 1". {slum/us is the lightest colored, and 1". r. r/b.~'u/vt/I.~' is the darkest of our supposed four terms, while the others are intermediate hetw‘een these two. 355. Falco mexicanus Selling. I’luimi: FAIA'HN. .»l:/.7Ab0vc. grayish hrow'n: primaries and inner welvs of all hut the middle tail»t‘eathers with numerous huti'y bars or spots; below. white. streaked and spotted with dark grayish brown. Inn-mSiiuilar. but with the upper parts margined with oeliraeeous—bufl‘ or butt): 5 l“. 17""): “I. 12-20: 12,700. Rang/ea;Western l'nited States, eastward casually to Illinois. Alas-t, on clitl's, sometimes in hollow trees. [zyg/N. two to live, “creamy White, Vinaecuus—white, or pale \‘inaeeous—hutt'y. sprinkled. speckled, or irregularly sphttetl with madtler-hrtm'n. 13'1”: x 1'00" tl’titlngl. V “ The Prairie Falcon. as the name implies, is a typical plains bird. and inhabits the dry interior. . . . “'l‘he tlight of this Ilawlt is swift and graceful. though in most cases it is carried on at no great distance from the ground. It is not a. shy bird. except in sections where it has been persecuted and has learned that man is its worst enemy" (Fisher). 356. Falco peregrinus anatum t‘ l)’011r1[i.i. Deer; Hunt. Ad.~ Upper parts dark liluish slate-color; primaries barred with eehraetwus: tail indistinetly harred with ldaekisli and tipped with white: under parts er -am— hull'. barred and spotted with hlaek. except on the hreast. [uhvlfppt-r parts t'useous. more or less margined with oehraeeous or rufous: region helow the eye hlaek: eaiueorerts bully: wings ts in the ad.: upper snrt'aee ot' the tail harred with g .t ish. under surt'aee littl'l'eil with oehrm-eous—lmil: under parts ereamJutll'or richraeeousdunil'. streaked. spotted,or harred with lulaek. a l... 10-00; “2. 1225: 'l‘.. 6'30: 1’). from N.. W. 9 L. l‘J'IW: \\'.. tit-mi; '1‘.. 77.1) [fang/Irrxorth America and the greater part of South America, breedingr locall}~ from our Southern States northward. Washington. rar- and irregular W. V. Sing Sing, casual. Cambridge, rare '1‘. V., casual in winter. 15