ik 
ike 
13. 
13. 
15. 
15. 
47. 
51. 
54. 
19 
10. Tip of outer primary black in adult; bill black; wing about.10 
BING See eh NPN ye eats ad TE Se CI To Se tees, le Bardeccre Gull. 
Back,wings, and tail sie in summer head and under gue black, in 
winter white....... ee .Black Tern. 
Back and wings pearl as crown more or eR nlc Moreen eeer Gly) 
12. Small, wing about 62 inches; forehead whites crown and line 
through eye black, bill yellow in summer. .... ...,Least Tern. 
12. Medium, jee 94 to 112 teen erown wholly black, bill red in 
summer. Sts Boe als) 
12. Large, wing 14 is 17 eee crown Ae Black, bill orange (15) 
Inner web of outer tail feather gray, outer web white; under parts pure 
WHO ala, oe eae .Forster Tern. 
Inner web of tee fail foxthen Ses en ee gray; Moder parts gray- 
TESLA Vane: ha oti ete ge gl ta Nea Ae ST GH EWE ANTEC Ca a el ae en (14) 
14. Billred, tippedwith black ; tarsus over ¥% inch; tail one-half length 
EV WIE Moke placket ryepaate Ce eM Oe a ee tu es Common Tern. 
14. Bill wholly red; tarsus under ,,inch; tail two-thirds length of 
wing..... aie .Arctic Tern. 
. Primaries wholly iilealeish deinen on. Hales web: attieas. fakes larger. 
beucpan Tern. 
Primaries ae inner cee thirds’ au inner w wen! eee, a white, the tip 
AMG GUbeE WED LOS yRDlAGRsc cai waht te sis adil todo meatus Royal Tern. 
Larus marinus Linnaeus—GrrEAatT BLACK-BACKED GULL. 
The only Nebraska record for this bird is Aughey’s, he having ex- 
amined a dead specimen which some Winnebago Indians had shot on 
the Missouri and brought.to Dakota City in May, 1871. He states 
that this was the only instance of its occurrence in Nebraska known to 
him. Some doubt has been expressed as to the acceptability of this 
record, but the bird winters regularly to the Great Lakes, and is so 
well-marked in adult plumage by its slaty mantle and even in the 
young by its very large size, that misidentification is hardly possible. 
Larus argentatus Bruennich—HeErrine GULL. : 
A rather rare migrant. Aughey records two specimens, procured 
from the Winnebago Indians in May, 1870. Since then other observ- 
ers have recorded it from West Point, Lincoln, Omaha, Rockport, 
Gresham, and Beatrice. Breeds from northern states northward. 
Larus delewarensis Ord—RING-BILLED GULL. 
A common migrant. There is a strong probability of this bird 
breeding in northern Nebraska, especially about the Cherry county 
lakes, where J. M. Bates, J.S. Hunter, R. H: Wolcott, J. EK. Wallace, 
and F. H. Shoemaker have, in several different seasons, found it to 
be common throughout the summer, but as yet no one has found 
anest. Also recorded in July from along the Niobrara and Elkhorn 
rivers. Appears in spring about April1, and lingers in fall to October. 
