Ki:V TO THE BIRDS OF EAsTKKN NolJTIl AMKKICA. 



* Group 3, Wing, 6.50 to 9.50 inches long. 



I'pper part-, dark sooty In-own or L,Ta\ i-h hlack : un- 

 tlerpari s, white : sides of breast, tinged with irrav: middle 

 toe and claw, less than 2 inches Ion- . 



i'lirtiinifi ,iii<iiiii,,ni. Audubon's Shearwater. 



See No. l\->. 



The Manx Shearwater. r>iM,nt. /.itjlhuix. a Knropean 

 specie-, -oinewhat resemble- Audulniu's Shearw atrr, lull il 

 is larircr. tin- back darker, tin- wini: rarely, if ever, iiifa-ur- 



|i-s than s. |n inchfs, and tin- iniddli- toe and (.'law -2 itu'lics or more. It is of ari-idi-ntal 

 on our ruast . 



Group 4. Wing, 11 to 13 inches long. 



I I'i'iT and under tail covert-, yray \- I >\-<> \vni-h n'ray : In-east, white. 



I'mHmix IIKI/HI-. (ireater Shearwater. 



See No. w. 



1'nder tail e-ivert-. ^ray ; upper tail coverts, sooty; breast, jrray. 



Puffinus fulifjinosus. Sooty Shearwater. 



See No. I'..'}. 



Upper and under tail coverts, white. .K*tri-i<ttn Imsiditn. Black=capped Petrel. 



See No. C>\. 



I'pper tail coverts, pearl ^ray; under tail coverts, white, or entire plumage, dark -late 

 i dark pha-' , Fulmarua glacialis, and races. Fulmar Petrel. 



See Nos. 57 and ">S. 



Group 5. Wing, 13 to 15 inches long. 



1 'pper -urtare n| tail t'eathers. dark slaty lirown : under tail diverts, ash -ray or brownish 

 gray. I'liMim* ninjur. Greater Shearwater. 



Sec No. CO. 



I'pper surface nf tail feathers, dark slaty lirown: under tail coverts, white, sometimes 

 -lightly niutt led with .ii-rayi.-h. I'n Mints i,ri'<ilin. Cory's Shearwater. 



See No. 59. 



I'pper -nrlace nt tail leathers, pale pearl uray; upper tail coverts, pearl irray : under tail 

 diverts, white; or entire plumage, dark slate color ulark phase). 



Fulmarus glacialis, and rm-ix. Fulmar Petrel. 



See Nos. n7 and ">s. 



: " Group 6. Wing, 15 to 17 inches long. 



I'jiper -urt'arc d| tail leather-, dark slaty lirown: under tail coverts, ash gray, or 

 hrowni-h --ray. I'liMim* major, (ireater Shearwater. 



See Ni."iO. 



I'jiper -urf.ice <>f tail feathers, dark s] a ty In-own: under tail covert-, white; sometimes 

 slightly iiiottii-d with irravi-h. l'tirthi><x >iri ulix. Cory's Shearwater. 



See \'o. 59. 



I 01 'lin-rlion- li.r nu-:i.iin iiu-nl. pa{ 



