共 54 条
- [1] BARRY THOMAS W., 1962, JOUR WILDLIFE MANAGEMENT, V26, P19, DOI 10.2307/3798163
- [3] BEER C. G., 1962, BEHAVIOUR, V19, P283, DOI 10.1163/156853962X00069
- [4] BRECKENRIDGE WJ, 1956, J WILDLIFE MANAGE, V20, P16
- [5] Brody S., 1945, BIOENERGETICS GROWTH
- [6] PHOTOGRAPHIC INDEX FOR AGING MALLARD EMBRYOS [J]. JOURNAL OF WILDLIFE MANAGEMENT, 1974, 38 (02) : 298 - 301
- [7] CALDWELL PJ, 1971, THESIS U FLORIDA
- [8] COOPER JA, 1972, WILSON BULL, V84, P90
- [9] COOPER JW, IN PRESS
- [10] Crossley R., 1964, British Birds, V57, P515