740 



'J'lll'. Ili'.l'.RMA.W ('.ILL 



'riif Slmri-liillcd (nill rcuirn> 1" Alaska in Max. ai which season, ac- 

 Cdrdiiij; Id Mr. Xclsnii. its soft wltitc ]ihiniagi' is shailcil uiiii a delicate 

 fose color. "It is a iiiarshdo\iii<;' species, and is rarel\- louiid near the hold 



pi-oiiiontories and 

 capes which de- 

 light the Kitti- 

 wakes. Frecjuent- 

 ing all the Hat 

 niai'shy country (it 

 the coa.st and iii- 

 tei"ior, I h e v are 

 found nesting from 

 the peninsula of 

 .\laska north to 

 the head of Kot- 

 zebue Sound, and 

 from this sea- 

 coast region they 

 b r e e d interii n'K" 

 o\-ei" .\laska and 

 northern llritish 

 SuoRT-iULLiiL) i.i.ij,s. America." 



Tnh'cit ill Srnttlf 



Photo by the Aiitlu-i . 



No. 297. 



HEERMANN'S GULL. 



A. ( ). L". X. 



Lams heermanni 1,'ass. 



Sjiionjm. — W'li in:- 11 1: Ainni ( iii.t.. 



Description. — .Idiilt in byccding pliiiiiOf/r: I '.ill Ncrniilion thniout, or else 

 blackening on ti]): eyelids red: head and neck all around pure white: remaining 

 ujiperparts plumbeous slate, li,gliteninq on rump, changing to ashy on upper tail- 

 coverts; primaries black, all but the two nr three outermost narrowly ti])|ie<l with 

 white: underjiarts deep ashy-gray: feet and le,gs reddish black. Adtdt in ivintcr: 

 Head color of back or darker. Yoiiiifj of the vciir: Entire plumage sooty black, 

 more or less edged with grayish white, es].)ecialh- on back and wings: tail tip])e<l 

 with white, but white tips of fli,ght-feathers more or less obsolete: bill and feet 

 brownish black. ! iiiiiiatiirc: Head and neck mottle<l brownish-dusky and white, 

 clearing on forehead and throat; terminal white of tail broader: bill a> in adult. 

 Length of adult: 17.50-21.00 (444.5-533.4 1 : wing 13.50 ( 342.1) ) ; liill 1.75 (44.5), 

 deiith of angle .55 ( 14) : tarsus 2.20 ( 55.1)). 



Recognition Marks. — Crow size: flark body jilumage unmistakable in any 

 feather. 



