2.T2 



NORTFI AMKIUCAX niHDS. 



ilarii's iniifli (IiirkiT ...m llic tail, iikhc Miiisli; less s<>. liowcvcr, lliiiii tin- sr'ii|)iiliir>". r.oirs 

 wliilisli, c|Milf ill I'liiidiisl Willi till' Mack of tiic roiclicml ; clii'clis ami I'ar-covcrls darii 

 ashy, sliN;liily wmsIiimI Willi rcililisli, ami willi (ilisciirc darker streaks; ehiii and lliroiit white, 

 with s|mrse hair-like slialt-sl reaks ol' hliuHv, Kreast, alHloiiieii, >iiles, liaiiks, ami liliiu' 

 line vinaeemis-riiliMis ; leallu'rs (except on liliiie) with line iiair-like siialit -streaks ol'lijaek 

 (iniieii imrrower thnn in ron/ieri); breast, aliduinen, sides, anil liiniks with pairs ol' trans- 

 verse (ivoid while spots, not toiiehinji tlie shaft ; on the alidonien the wiiiti^ and riifoiis 

 l.ars are orahoiil eipial width ; mi the lihia; tlic riiloiis is deejiest, and exeeeds the white; 

 anal re^'ioii liarred wiili rnloiis, more liiinlly than the aliduinen : lower tail-eoverts snowy- 

 while. Sides of the neck deep reddish-ashy, this washing; ihe whole sicle ol' the lireast, 

 I.ininjr ol' the win;,' ledilish-white, with lunnerons crowded, eoidate, somewhat lilendcd 

 sjioLs (if riilons ; iui'ffur coverts trniisvei'.sely spotted with Maekish; under side of priiiia- 

 rios silvery-whiti! (hlackish (()r ahoiit the terminal iin'h), crossed with ipnulratc! spots of 

 hlackisli, of which there are aliout seven on the lonj;est ipiill (fourlh); the liasal ones arc, 

 however, so niiich hrokeii, that the iiiiniher varies in dill'erent individuals. 



YnuiKj male (Kort T"Joii, California). Forehead, crown, oci'i|mt, and nape deep nisty- 

 riilons; feathiM's wit' hroad loiifjitndinal streaks of pint; hlaek. itest of iip|icr parts deep 

 iimlicr. daikesi on the hack ; feathers of hack and rump, the npper tail-i.'overt.s, scapulars, 

 and wini.'-coverls, hroailly hordered with nisty ; s(;apiiliu's with concealed while spols. 

 Tail nshy-innhcr. tippcil (more hroadly than in adult) with ashy-white, cro.sscd liy four 

 l)i'oad hands of hrownish-lilaek ; the last (or siiliteriuinal) of which is hroadost, the first 



concealed hy the (;overts. Si ndaries ami priniarii's similar in color to the tail, hut 



darker; the lirst showinj,' live ohsoK^le darker bands, and tipiicd (rather hroadly) with 

 pall! eiunamon-rufous. Ivir-eoveris and cheeks fulvous-white, thickly streaked with dark 

 brown. liower parts while, washed with oelnaceous on jufjuluni and breast; each 

 feathci' with a central loiif,'itudinal lanceolate stripe of clear umber, the shall of each 

 black ; these streaks are very narrow on the throat, broadest on the breast and Hanks. 

 Tibiu' ■ ill transversely ovntc spots, and transverse bars of reddi.sh-uinhcr; lower tail- 

 coverts with narrow .shaft-streaks of darker brown. Lininj,' of winif with cordate and 

 ovate spots of dark brown. 



i'ounij feiiiiile {V2,\'-i('>, Orizaba, Mexico; M. Bottori). Similar to the yoiinf,' male; 

 feathers of ba<;k, etc., less broadly inarj^'iiied with rusty. Ochraceous wash on lower 

 parts more decided ; stripes beneath broader and less lanceolate; on the si(i s broadly 

 ovate, and on the Hanks in form of broad transverse bars; tibiie more tie i<ly spotted 

 transver.scly ; lower tail-coverts innnaculate. Wiuf,', II.OO ; tail, 7.8t); tarsus, '2.'J.> ; mid- 

 dle toe, 2.50. Fourth quill longfest ; third shorter than fifth ; second intermediate between 

 sixth and seventh ; first, 2.90 shorter than lonijest. Graduation of tail, .90. 



Hah. Western region of Xortli America; Mexico. 



LIST OF SPECIMENS EX.VMINED. 



National Museum, 22; Boston Society, 2; Museum, Cambridge. 2 ; Cab. G.N.Law- 

 rence, 2 ; Philadelphia Academy, 2 ; Coll. R. Ridgway, 2. Total, 32. 



Habits. Tliis common Hawk .appears to have a very j,'oiicral distribution 

 ovor the United States, from Soutli Carolina to Xew lirunswick, on the 

 Atlantic; from Texas, New Me.xico, and Arizona, in the interior, to the 



