MORMON CIRRIIATA. 13 



URIA MANDTII. 

 Mandts Guillemot. 



UllIA MANDTII LiCIIT., YtTZ., 1 82o, 88. 



DESCRIPTION. 



Sp. Cn. Size, small. Form, about that of the Black Guillemot. Cni.ou. Apn.T. Sooty lilaek tlirou<>;h- 

 out, with a large oval patch I'f pure winte on the wing, the feathers of it being white to the base, and which 

 is never encroached upon l\v the black. Iris, lirown; bill, black: feet, coral red. 



Winter Adult. Wings as in the suunuer adult, but white elsewhere, mixed with black im the back. 



Young. Snnilar to the winter adult, but the lower parts are indistinctly barred with dusky, and the 

 white feathers of the wing patch are each tipped with blackish. T'le up]ier wing coverts are also mottled 

 with white. Downy Young, sooty brown throughout, but lighter beneath. 



OBSERVATIONS. 



Recognized by the small size and dark colors. Known from the Black (iuillenidt. by the feathers of 

 the wing patch being white to the base, and these are never encroached ujion by the black of the wing. 

 Breeds from the coast of Labrador, northward, wintering as far south as New .Jersey. Occurs also in the 

 northern Pacific. 



DDIENSIONS. 



Measurements of specimens. Length, 12-."iO to Ki'.'iO: stretch. 2'-)'0C) to I'l-dO: wing, (V'l'i tii7"_'(t: tail, 

 l-llO to L'-tid: l)ill, 1-(K) to l-i'(): tarsus l--'tl to l-;!(.t. 



DESCRIPTION OF NESTS AND EGGS. 



Eggs, placed in holes of difts, three or four in number, oval in form, varying from creamy to greenish 

 in color, spotted and blotched with brown and umber. L^imensions: r;J0x2:or) to I'^Mix L''o8. 



HABITS. 



Mr. M. Abbot Frazar obtained Maiidt's Guillemot l)reediiig on the coast of Labrador 



in June, 1886. Mr. Frazar informs me that he noticed nothing at all peculiar in their 



habits as compared with the Black Guillemot with which they as,sociated. The .species 



Avas not common so far south, and only four specimens Avere obtained. 



MORMOM CIRRHATA. 

 Tufted Puffin. 



M0R.MON ciRRn.\TA Bon., Sra., 1828, 429. 

 DESCRIPTION. 



Sp. Cii. Form, robust. Size, large. Bill, large and heavy, longer than the head; upper mandible 

 crossed by three ridges and dejiressions: lower, plain; basal, deciduous portion of lioth mandibles, wide, occu- 

 pying two thirds its width. Eyelids, without any horny appendage. Sides of head, pro\-ided with a large 

 tuft of elongated, drooping, silky feathers. Sexes, similar. 



Color. Adult in summer. Sooty black throughout, becoming grayish below, where it is sometimes 

 mottled with whitish- Triangular patch on sides of head, with the apex pointing backward, white. Elon- 

 gated feathers on head, yellowish. Terminal two thirds of liill, bright red; basal third, greenish yellow. 

 Naked space around eye and feet, red. Iris, white. 



Adult in winter. Similar to the summer dress, but the sides of the head are dusky, lighter in the 

 sjiace occupied by the elongated plumes, these being absent. The horny basal portion of the bill has been 

 moulted and has been replaced by a soft, dusky colored skin. 



Young. Similar to the winter adult, but the bill has no grooves and is darker in color. Rudiments of 

 elongated tufts, brownish. Downy Young, uniform dusky throughout, and the bill is quite slender in form 

 ami also dusky in color. 



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