INDEX 
A 
Ambition, a strange, 323 
Animals, Memory of, as compared with 
that of man, 107, 108 
— Wild, not appreciated, 138, 139 
— Philistine nomenclature of, 152-4 
— Sensuous pleasures of, underestimated, 
252 
— Happiness of, as compared with that 
of savages, 256, 257 
— Choice of, in regard to one another a 
necessity, 281-3 
— Cries of, false value often attached to, 
306, 307 
— Minds of some people in strange 
state about, 307 
— Wild, hearts of, seldom explored, 323 
— Have no rights, 348 
Appeal against God, an, 333 
Arctic Skua, Persecution of terns by, 
g-13; mot always successful in 
chase of, 10 
— Suggested origin of piracy practised 
bys IY, £2 
— Threatened attack of, rarely made, 
103; possible reason of this, 10, 11 
— Does not hawk at fish, 9 
— Baffled by rock-pipit, 10, 160 
— Will leave fish that drops on the sea, 
Ti, 12 
— May be pirate or highwayman, 13 ; 
possible process of differentiation 
in this respect, 13 
— Loves brigandage, 14: and plays at 
it, 14 
— Wild cry of, 14, 161, 162 
— Grace, beauty, etc., of, 14 
— Variety of coloration exhibited by, 
15-25 
— Description of fifteen differently 
coloured forms of, 15-20 
381 
Arctic Skua, Is multimorphic rather 
than dimorphic, 21 
— Young resembles the great skua in 
plumage, 22; and also in wanting 
the lance-like feathers of the tail, 
22,23; these facts probably due to 
sexual selection, 22-5 
— Might knock one’s hat off under 
certain circumstances, 94, 151 
— Puffin robbed by, 133 
— Its absurd prenomen, 152 
— Bathing habits of, 160, 161 
— Chases ravens, 191 ; its different cry 
whilst so doing, 191 
— Black guillemot robbed by, 302, 303 
— Piracies of, may be turned to account 
by herring-gull, 302, 303 
B 
Bacon in frying-pan, companionship 
afforded by, 3 
Bathing, Possible passing of, into an 
antic in some aquatic birds, 199-201 
Bats, Aerial performances of, 134; com- 
pared with those of swifts, 134 
Birds, Possible loss and reacquirement 
of the power of flight by some, 7 
— “Of a feather flock together,” 7 
— Segregation of the sexes of, in, 7 
— British, process of change and differ- 
entiation of, in, 44; advantage of 
collecting evidence in regard to 
this, 44, 46 
— Possible origin of some antics in, 
72, 7% 
— Sometimes very rude, 173 
— Want of uniformity in the actions 
of, 174 
Black Guillemot, Breeds in the Shet- 
lands, 57 
