APPENDIX. 
2 39 
30. Larus argentatus. Herring Gull. — Above, pearl-gray ; 
below, white; bill, yellow, showing a red spot; feet, flesh-color. 
Length about 25, wing about 16. 
31. Larus delawarensis. Ring-billed Gull. — Bill, dull yellow, 
w’ith black band near the tip. Length about 18, wing about 14. 
32. Sterna galericnlata. Elegant Tern. — Bill, bright red, 
paling at the tip ; legs and feet, black ; crown and crest, black ; under 
parts showing rose color. Length about 18.50, wing about 12.25. 
33. Sterna trudeaui. Trudeau’s Tern. — Bill, orange, marked 
with black ; entire plumage, grayish ; a band through the eye. 
Length about 12, wing about 9.50. 
34. Sterna forsteri. Foster’s Tern. — No black cap; under 
parts, white ; a black band through the eye ; bill dark. Length 
about 12.50, wing about 10. 
35. Rhynchops nigra. Black Shimmer. — Above, black; under 
parts, white; bill, red and black; the under mandible much longer 
than the upper; very thin. Length about 18, wing about 14. 
36. Podilymbus podiceps. Pied-billed Grebe. ■ — - Bill with black 
bar ; black patch on the throat ; upper parts dark ; under parts, 
white, sometimes marked with dusky. Length about 13, wing 
about 5. 
