'V 



LAHIDiE — THE GULLS AND TERNS — lUIODOSTETIlIA. 



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wiii>{» clear p«'nrl-<,'niy ; outer wub of the first qnill Macki-^h In-own to it« tip, which is gmy ; tiim 

 of tlitt .sciiiuihirs anil lesser (luills whitish ; some small featliers near the eye and ii collar round the 

 iiiiildle of tiiu neck pitch-Mack, rest of tiic plumage white ; the neck a)H)ve and the whole under 

 phunage deeplir tinged with peach-hlossom red in recent specimen)*. ]U11 Muck ; its rictus and tliu 

 edges (if the eyelids reddish orange ; legs and feet vermilion-rtMl ; nails Mackish, 



"Form. Tiill slender, weak, with ii scarcely perceptible sjilient angle beneath ; the upper mun- 

 dlMu slightly arched and comjiressed toward the jtoint ; the commissure slightly curvetl at the tip. 

 Wings an inch longer than the decidedly <Mnieiform tail ; the central feathers of which ai-e an inch 

 longer than the outer ones. Tarsi rather stout ; the thumb very distinct, armeil with ii nail as 

 large as that of the outer loe. 



"Dimciisiotis. Length, 14.fM) inches ; wing, \0.W ; tail, .'i.riO ; bill alnive, .Tr), along gape, L25 ; 

 tarsus, 1,^5" (IluiiAUDsoN, Faun. IJor. Am. 11. 427). 



Adult mull', ill viiiti r (No. H72:«», U. S. Nat. Mu-*., lat. 71° .'>(►' N., Antic Ocean, north of Siberia, 

 Oit. 7, 1H7!); U. L. Nkwco-Mh) : Head, neck, and lower parts jmre while, the piluni tiiigetl with 

 pale pisul-gray, the! breast and most of other lower jiarts tinged with a very tine delicate rose- 

 |iiiik; no trace of black C(dlar, but a distinct blackish patch <>r Ixir immediately in front of eye. 

 Mantle and wings delicate pale pearl-gray, the seiondaries very bnwilly tipped with pinkish while, 

 llic two inner primaries becoming gratlually white terminally, anil the miter web of the outer 

 primary cliietly black. Lower part of rnmp, upjM'r tail-coverts, and tail white, faintly tinged 

 wiih delicate rose-pink. Bill black ; iris l)rown ; legs and feet pale brownish in drieil skin.' 

 Wing, 1().(H) inches ; tail, 4..')(), the latend feathers .75 shorter ; culnien, .7r>; tarsus, 1.25 ; middle 



tiie, l.(H>. 



Younij muh; in «ecoml mmnur (No. 87232, U. S. Nat. Mus., Arctic Ocean, north of Siberia, Juno 

 •2:1, R. L. Nkwiomii) ; Head, neck, lower parts, lower part of rump, and upper tail-coverts pale, 

 licliiate rose-pink, this deepest lieneath the surface of the feathers, the head and neck, e.xcept 

 niidernealh, nearly pure white ; upper jiart of neck encirclwl by a narrow black collar, broadest 

 on the throat, only the tips of the feathers iK-iiig black. Mantle and wings delicate jude |)eurl-gray, 

 tile lesser and middle wing-coverts dusky black tin the surface (only the concealcnl iMM'tion In-ing 

 peail-gray) ; inner secondaries, primary coverts, aluhe, and adjacent sniidl feathers, with tlin-e 

 imtu ]irimaries, blackish dufky, the inner webs of the latter, however, with the marginal half 

 pcail-gray ; ivnniining primaries pearl-gray, becoiniiijs wliite on the innermost iiuills, all of theni 

 limailly tippeil with black ; under surface of wing pale ]iearl-gray, like the mantle. Tail white, 

 till' third, fourth, and lirtli feathers broadly tip|K'd with black (this .75 ot an inch in extent on 

 liltli or ne.;t to the middle feather). Kill black ; iris brown ; legs and feet bright red, daws bluck. 

 Wing, aliout 0.75 (i|uills much abraded) inches; tail, 4.S(), the lateral feathers 1.50 hhorter ; 

 iiilnitii, .70 ; tarsus, 1.2(> ; middle toe, l.(M>. 



Aiiulher young male in second sunuuei, also collected by Mr. Newcoinb (No. H72:?l,.Iune 30, 

 ISM»), dillVrs in having the rosy lint almost enlii-ely absent, the black necklaci- much less di.stiiu't, 

 and the tail wholly white. It measures : Wing, 0..50 iiches ; tail, 5.Ht, the lateral feathers 1.20 

 sliuiliT ; cidmeii, .(i5 ; tarsus. 1.25 ; ndddle toe, 1.(I5. 



Vmim/, in firxt jilnmiuiv (No. 81224, St. Michael's, Alaska, Oct. 10, ls7!) ; K W. Nklhox): (Jen- 

 I'lal I iiliir iif pili-um, na|H', and nuuitle very ])ale pearl-gray, but this only on the .surface, all the 

 mull riving portion of the feathers being puie white ; all the parts descrilH'd heavily 1 londed with 

 (lark I'niiginous, or blackish dusky, there being many feather)* with the tip very broadly of this 

 color ; these dark nuirkings prevail on the ujijier purtion of the rump, where the feathers have dull 

 linll'v tips. Lower part of rump, upper tail-coveits, and greater part of tail immaculate pure white ; 

 miiMli' pair of tail-feathers with the end sooty-black fur almtit .x'% of an inch, the ne.vt feather on 

 c ii li siile black for a much less distance, the third with merely a slight mnllling of dusky at the e.\. 

 tienic tip. Lesser and middle wing-coverts, tertials, and nmsi of the scapulars dark sooty or browii- 

 isli Mack, each feather dis'.nctly bonlen'd terminally with jiale grayish bulF ; greater winn-coverts 



' I'rofi'ssor .1. MurdiH'h lias kimlly finnislu'd us with tlip fuUowiiig iU'-.criptii)ii of tlio fn-sh ciilum of 

 nil I'lult male in winter jiluinagc obtainvil )iy him at I'oint Burrow, Alaska " Feet tcriu-cottu red, with 

 linmn welin mid knuckles. While every where tinned with red, except rectrice* ; nmc-colur Homcwhut 

 III"!' Iiy and appronchiuK sidmun-color, cspeeially on erisHUiu. Miintic |H-urly bluu, extending 01 niiitlIiuK» 

 ti> the luti'k of tho lieuil. Edge of wing, frunt shuuldiT tu wriat, bright ru.sy." 



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