1034 6: YS TEMA TIC S YNOPSIS. — TUBINA RES. 



coverts, pure white, except some slight touches of gray on flanks ; lining of wings and axillars 

 white, except just along the edge. On sides of head and neck, no line of demarcation between 

 color of upper and under parts, the two merging tlirough a cloudy or wavy area; under eyelid 

 white. Bill yellowish, darker on culmen and hook; feet yellowish, the webs clearer. Length 

 about 18.00; wing 13.00; tail 5.50, graduated 0.75; chord of culmen 1.90; gape 2.60; height 

 of bill at base 0.70; width0.60; tarsus 1.90; middle toe and claw 2.50, outer ditto 2.55. (De- 

 scribed from a European specimen.) N. Atlantic, European coast, especially of the Mediter- 

 ranean. Greenland! Introduced to our Fauna in 1872, in original edition of the Key, p. 331, 

 upon strength of its general range, and Schlegel's ascription of it to Greenland ; but I have 

 never seen an unquestionable North American specimen. A. 0. U. Hypothetical List, No. 5. 

 P. borea'lis. (Lat. borealis, northern.) Cory's Shearwater. "Above brownish-ash, 

 the feathers of the back becoming pale at the tips, those on the nape and sides of the neck nar- 

 rowly tipped with white ; on the sides of the head and neck the ash and white gradually ming- 

 ling as in P. kuhlii. Tips of the upper tail-coverts white. Under eyelid white, showing 

 clearly in contrast with the ashy-gray of the head. The first three primaries are light ash on 

 the inner webs. Wings and tail brownish-gray. Under parts white, slightly touched with 

 ash on the flanks, lining of wings white. Under tail-coverts white, the longest tinged with ash 

 near the ends, which extend nearly to the tips of the longest tail-feathers. Outside of foot 

 greenish-black, inside and webs dull orange ; bill pale yellowish at the base, shading into 

 greenish-black, but again becoming pale near the tip. Length 20.50 inches; wing 14.50; 

 bill (straight line to tip) 2.25; depth at base 0.75; tail 6 50; tarsus 2.20." I copy the original 

 description (Cory, Bull. Nutt. Club, vi, 1881, p. 84). The bird is perfectly distinct from 

 P. gravis, but too near P. kiihli, with which it is identified by Salvin. Coast of Massachu- 

 setts, Rhode Island, and Long Island. A. 0. U. No. 88. 



P. gra'vis. (Lat. gravis, heavy.) Greater Shearwater. Wandering Shearwater. 

 Common Atlantic Shearwater. Hagdon. Hag. Bill little shorter than head or tarsus, 

 stout and subcylindrical at base, gradually compressed to the strong hook. Nasal tube straight, 

 about 5 as long as culmen, with v/idely separated subelliptical openings. Culmen rising with 

 slight continuous concavity from nostrils to top of the hook; commissure a long regular curve, 

 convex downward, from. feathers to curve of the hook. Outline of inferior mandibular rami 

 about straight. Bill about 3 times as long as high at base, not so wide as high. Wings long 

 and pointed; 1st and 2d primaries nearly equal. Tail contained about 2| times in length of 

 wing, much rounded, almost wedged. Tarsus as long as middle toe without claw ; outer toe as 

 long as or longer than middle, but its claw smaller, falling short of tip of middle claw ; tip of 

 inner claw not reaching base of middle. Adult : Above, dark bistre-brown, on head inclining a 

 little to plumbeous or grayish-brown ; usually ligliter on hind neck, darkest on inner secondaries 

 and rump ; each feather of back, rump, and wing-coverts edged with pale brownish-ash or even 

 ashy-whitish. On head the ccdor uniform, without these light margins, extending below eyes 

 to level of gape, with distinct line of demarcatitm from white of throat. On side of neck the 

 white reaches farther around, and is less distinctly outlined ; farther back, on sides of breast, 

 the dark color encroaches on the white. Upper tail-coverts, especially the longest ones, mostly 

 white, with dark bars or central fields. Primaries brownish-black, lightening on inner webs 

 toward base. Under parts wliite from chin to anus, with large dark brown patches on flanks j 

 under tail-coverts dark grayish-brown, with whitish tips; lining of wings white, mottled with 

 dark along the border and on ends of axillars. Tail-feathers like primaries. Bill blackish 

 horn-color ; outside of tarsus and outer toe brownish ; rest of feet and webs yellowish flesh- 

 color ; iris brown. The intensity and uniformity of coloration of the upper parts varies much 

 with age of the plumage. Fresh plumages are deep plumbeous-brown with narrow pale or 

 whitish margins ; old worn feathers are duller brown with broader less distinct grayish-brown 

 edgings. Observe line of demarcation of dark and white on head, neck, and breast; uniform 



