172 



INDEX 



Carp, how they seize their food, 



157, 158 

 Cereals, damaged and devoured 



by gulls, 123, 126 

 Chondrus, colour-reflections of, 



16 

 Chub bullied by a rainbow 



trout, 162 

 Collinge, Dr. Walter E., 102, 125 

 Coloration, protective, 10 



its value to waders, 94 

 Common gull, the, fish and 

 marine food consumed 

 by, 119 

 land food taken by, 123 

 Common seal, the, 84 

 Concealment by reflection, 9, 10 

 12, 15 

 mimicry as a factor of in 

 subaquatic life, 15 

 Cormorant, the, a miscalled 

 " diver," 26 

 and "flash" from, 19, 30 



el seq. 

 as destroyer of fish, 34 

 as swimmer, 33 

 Cormorants, enormous appe- 

 tites of, 29 

 habitat of, 26 

 how they hunt their prey, 31 

 nesting habits of, 27 

 nests of, 28 

 plumage of, 30 

 species of, 26 

 Country Life, an article on " A 

 new Colony of Black- 

 headed Gulls " in, 122 

 on the destruction of sea- 

 birds, 103 

 Crab the Swimming (Portunus 

 puber), 16 



Crabs as food for gulls, 119 

 mimicry among, 16 



Craneflies consumed by gulls, 

 123 



Crangon vulgaris (Shrimp), 119, 

 120 



Crustacea consumed by gulls, 

 119 



Crustaceans, mimicry of vege- 

 tation among, 15 



Cunynghame, Sir Henry, de- 

 scribes under-water ap- 

 pearance of floating 

 fly, 138 



Dabchick, the, its feeding habits, 

 41 



(See also Grebe) 

 Divers and the theory of 

 " flashes," 36 

 definition of, 25 

 diet of, 25 

 feeding habits of, 42 

 Diving ducks as fish robbers, 164 

 Dragon fly, larvae of, and fish 



culture, 42 

 Ducks and fish-spawn, 163 

 Dysttcus, larvae of, detrimental 

 to fish culture, 42 



Ear bones, distinctive sizes and 

 shapes of, 113 

 (See also Otoliths) 

 Earthworms, destruction of, by 



gulls, 123 

 Echinoderms, percentage de- 

 stroyed by gulls, 119 

 Eggs, cormorants', 28 

 kingfishers', 133 



