FAMILY aLCID.E. AUKS, PUFFINS, AND MURUES. 31 



* Group 3. Wing, 6.50 to 7.50 inches long. 



^ 



Bill, parrot like; underparts, white; back, black, usually a black 

 collar. Fmtercula arctica, and races. Puffin. Sea Parrot. 



See No. '.». 



Ailalt in t<itiinii<r : General plumage, black; a white patch on 

 the shoulder; basal half of the greater wing coverts (feathers 

 forming the white patch on the shoulder), black. Winter birds 

 have the uuderparts white, and the upper plumage, mixed black, 

 gray, and wliite. Cepphus grylle. Black Guillemot. 



See Xo. 11. 



Similar to the Black Guillemot, but has the wing coverts entirely white and not with 

 basal half black. Cppphtis mandtii. Mandt's Guillemot. 



Sec Xo. 12. 



Summer pi lUiMf/c : Flead, back, wings, and tail, sooty brown; uuderparts and tips of secon- 

 daries, white. WliUcr idamagi' : Underparts, white, more or less marked with -;ooty brown, 

 or blackish about the throat, belly, and flanks, Uria lomvia. Brunnich's Murre. 



See Xo. 14. 



Summer plumage: Head and neck, back, wings, and tail, black; tips of 

 secondaries and rest of underparts, white. Winter plumage : Similar, but 

 has the throat white. Alca torda. Razor=billed Auk. 



See No. 15. 



* Group 4. Wing, 7.50 to 8.50 inches long. 



Snniinir phiimi'ji' : llt'ad and m-clx. Icick, wings, and tail, black. Tips ot sccuniiarifs and 

 rest of underparts. white. Men tunla. Razor-billed Auk. 



See No. I.t. 



Summer phiiaiujc : Head, back, witigs, and tail, dark sooty brown; iinderi»arts and tips ol 

 secondaries, white. Winter iilninngr: rnder])arls, whiti-, nion- or less marked willi sooty 

 brown or lihickish .iIm.iii ilic tbioat, l-elly. :md tlanUs: Mil, iisindly <>vi-r 1.(10. 



frill triiilr. Murre. 

 .See Xo. l.{. 



Sinnlar to Frin tr<iilt\ but has the head darker than the throat; l)ill, usually umler l.»'.(> 



I'riii Inmriii. Brunnich's Murre. 



See \ 



Kor itiii'ctlotis fur iiKM'.iiri-iiicnt, see page H. 



