BIRDS BATHING

F. N. Bassett, 1922, Condor, Vol. 24, p. 63 (hummingbirds). A. C. Bent, 1937, U. S. Natl. Mus. Bull., 167, p. 370 (osprey).

HOW BIRDS ANOINT THEIR FEATHERS

W. L. McAtee, 1938, Auk, Vol. 55, p. 98 (review).

TRAVELING BIRDS' NESTS

H. S. Swarth, 1935, Condor, Vol. 37, p. 84 (barn swallows). M. A. Common, 1942, Auk, Vol. 59, p. 43 (tree swallow). D. L. Serventy and H. M. Whittell, 1948, Birds of Western Australia, p. 243 (welcome swallow).

MALADAPTATION IN BIRDS

J. Grinnell, 1926, Condor, Vol. 28, p. 97 (robin). W. H. Bergtold, 1930, Auk, Vol. 47, p. 571 (robin). H. W. Henshaw, 1921, Condor, Vol. 23, p. 109 (California woodpecker). D. Bannerman, 1933, Birds Tropical West Africa, Vol. 3, p. 415 (thick-billed honey-guide).

FEATHERED BABY SITTERS AND CO-OP NURSERY NESTS

D. Davis, 1940, Auk, Vol. 57, p. 179 (ani). A. C. Bent, 1925, U. S. Natl. Mus. Bull., 130, p. 85 (eider duck). R. C. Murphy, 1936, Oceanic Birds of South America, Vol. 1, p. 398 (penguins).