INDEX. 
aflinis, Larus, 4, 35. 
alba, Pagophila, 5, 14-16. 
Annotated list of species, 5-68. 
argentatus, Larus, 4, 36-40. 
artricilla, Larus, 4, 51-54. 
B. 
Bird refuges, 2-3. 
borealis, Larus, 40. 
brachyrhynchus, Larus, 5, 46-48. 
brevirostris, Rissa, 4, 21-22. 
C. 
cachinnans, Larus, 40. 
ealifornicus, Larus, 4, 41-42. 
canus, Larus, 4, 49. 
D- 
delawarensis, Larus, 4, 43-46. 
Distribution, 4-5. 
E. 
Economic importance, 1-2. 
F. 
franklini, Larus, 4, 54-57. 
G. 
glaucescens, Larus, 4, 27-28. 
Gull, Bonaparte's, 5, 57-62. 
California, 2, 3, 4, 41-42. 
Franklin's, 2, 4, 5, 54-57. 
glaucous, 5, 22-25. 
glaucous- winged, 3, 4, 27-28. 
great black-backed, 5, 30-33. 
Heermann's, 5, 49-51. 
herring, 3, 4, 36-40. 
Iceland, 5, 25-26. 
ivory, 5, 14-16. 
Kumlien's, 5, 28-29. 
laughing, 3, 4, 51-54. 
little, 4, 62. 
mew, 4, 49. 
Nelson's, 4, 30. 
ring-billed, 4, 43-46, 49. 
• Ross's, 4, 5, 62-65. 
Sabine's, 5, 65-68. 
short-billed, 5, 46-48,49. 
Siberian, 4, 35. 
slaty-backed, 4, 33-34. 
Vega, 4, 40-41. 
Western, 3, 4, 34-35. 
H. 
heermanni, Larus, 5, 49-51. 
hyperboreus, Larus, 5, 22-25. 
I. 
Introduction, 1-5. 
J. 
Jaeger, long-tailed, 5, 12-14. 
parasitic, 5, 9-12. 
pomarine, 5, 7-9. 
K. 
Kittiwake, 5, 16-19. 
Pacific, 5, 19-21, 49. 
red-legged, 4, 5, 21-22. 
kumlieni, Larus, 5, 28-29. 
L. 
Larus afimis, 4, 35. 
argentatus, 4, 36-40. 
atricilla, 4,51-54. 
borealis, 40. 
brachyrhynchus, 5, 46-48. . 
cachinnans, 40. 
ealifornicus, 4, 41-42. 
canus, 4, 49. 
delawarensis, 4, 43-46. 
franklini, 4, 54-57. 
glaucescens, 4, 27-28. 
heermanni, 5,49-51. 
hyperboreus, 5, 22-25. 
kumlieni, 5, 28-29. 
leucopterus, 5, 25-26. 
marinus, 5,30-33. 
minutus, 4, 62. 
nelsoni, 4, 30. 
occidentalis, 4, 34-35. 
Philadelphia, 5, 57-62. 
schistisagus, 4, 33-34. 
vegse, 4,40-41. 
Legal protection, 3-4. 
leucopterus, Larus, 5,25-26. 
longicaudus, Stercorarius, 5, 12-14. 
M. 
marinus, Larus, 5,30-33. 
Megalestris skua, 5-6. 
Migration, 5. 
minutus, Larus, 4, 62. 
N. 
nelsoni, Larus, 4, 30. 
O. 
occidentalis, Larus, 4, 34-35. 
P. 
Pagophila alba, 5, 14-16. 
parasiticus, Stercorarius, 5, 9-12. 
Philadelphia, Larus, 5, 57-62. 
pollicaris, Rissa tridactyla, 5, 17, 19-21. 
pomarinus, Stercorarius, 5, 7-9. 
Private associations, protection, 3. 
Protection, legal, 3-4. 
private, 3. 
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