2 
COLYMBUS HOLBCRLLII (Reinh.). 
Holboell’s Grebe. [B 702, C 610, R 731, C 847, U 2.] 
COLYMBUS AURITUS Linn. 
Horned Grebe. [B 706, C 61 1, R 732 C 848, U 3.] 
PODILYMBUS POPICEPS (LfNN.). 
Pied-billed 6r i eb‘e. '[% 709, C 614, R 735, C 852, U 6.] 
URINATOR IMLER - 
Loon. [B 698, C 605, R 736, C 840, U 7.] 
URINATOR ARCTICUS (Linn.). 
Black-throated Loon. [B 699, C 606, R 738, C 842, U 9.] 
URINATOR LUMME (Gunn.). 
Red-throated Loon. [B 701, C 607, R 740,, C 844, U 11.] 
FRATERCULA ARCTICA (Linn.). 
Puffin. [B 715, C 618, R 743, C 854, U 13.] 
CEPPHUS GRYLLE (Linn.). 
Black Guillemot. [B 726, part, C 631, part, 
R 760, part, C 871, part, U 27. 
CEPPHUS MANDTII (Licht.). 
Mandt’s Guillemot. [B 726, part, C 631, part, 
R 760, part, C 871, part, I? 28. 
URIA LOM VI A /( Linn. ) . 
Brunnich’s Murre. [B 731, C 635, R 7640, 876, U 31.] 
ALLE ALLE (Linn.). 
Dovekie. [B 738, C 626, R 752, C 863, U 34.] 
STERCORARIUS POMARINUS (Temm.). 
Pomarine Jaeger. [B 653, C 540, R 697, C 765, U 36.] 
STERCORARIUS PARASITICUS (Linn.). 
Parasitic Jaeger. [B 654, C 541, R 698, C 766, U 37.] 
RISSA TRIDACTYLA (Linn.) 
Kittiwake. [B 672, C 552, R 658, C 782, U 40.] 
LARUS GLAUCUS (Brunn.). 
Glaucous Gull. [B 656, C 543, R 660, C 768, U 42.] 
LARUS GLAUCESCENS (Naum.). 
Glaucous-winged Gull. [B 657, 659, C 545, R 662, C. 770, U 44.] 
LARUS MARINUS (Linn.). 
Great Black-backed Gull. [B 660, C 546, R 663, C 771, U 47.] 
LARUS ARGENT ATUS SMITHSONIANUS (CouES.). 
American Herring Gull. ‘[B 661, C 547#, R 666a, C 773, U 51a.] 
LARUS DELAWARENSIS (Ord.). 
Ring-billed Gull. [B 664, C 548, R 669, C 778, U 54.] 
LARUS ATRICILLA (Linn.). 
Laughing Gull. [B 667, C 554, R 673, C 786, U 58.] 
LARUS PHILADELPHIA (Ord.). 
Bonaparte’s Gull. [B 670, C 556, R 675, C 788, U 60.] 
GELOCHELIDON NILOTICA (Hasseeq.). 
Gull-billed Tern. [B 681, C 560, R 679, C 792, V 63.] 
STERNA TSCHEGR A V A (Lepech.). 
Caspian Tern. [B 682, C 561, R 680, C 793, U 64.] 
STERNA MAXIMA (Bodd.) 
Royal Tern. [B 683, C 562, R 681, C 794, U 65.] 
STERNA FORSTERI (Nutt.). 
Forster’s Tern. [B 691, 686, C 566, R 685; C 798, U 69.] 
STERNA HIRUNDO (Linn.). 
Common Tern. [B 689, C 565, R 686, C 797, U 70.] 
STERNA PARADISvEA (Brunn.). 
Arctic Tern. [B 690, 693, C 567, 568, R 687, C 799, II 71.] 
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