7816 Birds. 



Sclavonian Grebe (P. cornutus). Shrimps, small pieces of sea-weed. 



Little Grebe {P. minor). Insects and their larvae, fine roots, pieces 

 of down. 



Great Northern Diver {Colymhis glacialis). Fish, particularly the 

 sand-launce {Ammodytes lancea) ; common sand-worm [Arenicola 

 piscaioriuni). 



lledlhroated Diver {C. septen/rionalis). Trout, small sea-fish, large 

 insects. 



Guillemot {Uria troile). Fish, small fragments of sea-weed. 



Ringed Guillemot [U. lacrymnns). Fish. 



Black Guillemot [U. grijlle). Fish, small crabs, marine univalves. 



Little Auk (t/. alle). Bones of small fish. 



Puffin {Mormon fr ate re ula). Fish, shrimps, sand. 



Razorbill [Alca torda). Fish. 



Cormorant {Carbo cormm-anus). Trout, plaice, eel, sand-launce, 

 sillack, or young of the coal-fish {Gadwi carboiiarius). 



Shag [C. crlstatus). Plaice, sillack. 



Gannet [Sulci hassana). Fish. 



Common Tern {Sterna hirundo). Sand-launce. 



Arctic Tern {S. arctica). Fish, large beetles, moths. 



Blackheaded Gull {Lnrm ridihundus). Fish, insects, grubs, slugs, 

 small snails, earth-worms, fine roots of plants. 



Kittiwake Gull (Z. tridactylus). Fish, aquatic plants, small beetles. 



Ivory Gull {L. ehurneus). Fish, blubber. 



Common Gull {L. canus). Flesh, fish, insects, earth-worms, slugs. 



Lesser Blackbacked Gull [L.fiiscus). Fish, insects, sea- weed, barley. 



Herring Gull {L. argentatus). Flesh, fish, insects and their larvae, 

 slugs, earth-worms, fragments of shells, crahs of various kinds, star- 

 Jish, Echini, grain, turnip, coarse sand. 



Great Blackbacked Gull {L. marinus). Flesh, young of cormorant, 

 fish. 



Glaucous Gull {L. glancus). Flesh, blubber, fish. 



Puchardson's Skua {L. Richardsoni). Fish, eggs of common gull. 



Manx Shearwater {Puffinus anglorum). Bones of fish. 



Storm Petrel {Thalassidroma pelagica). Pieces offish-liver. 



Henry L. Saxby. 



Balta Sound, Shetland, 

 Sepleinber 24, 1861. 



