S. piscator, [74];

S. serrator, [73];

S. variegata, [74]

Sulidae, [70], [73];

habits, [75]

Sultan-bird, [539]

Sun-bird, [355], [427], [568] f.;

habits, [569] f.;

Splendid, [569]

Sun-bittern, [243], [266] f., [266]