FOOD-SEEKING ACTIVITY OF SOUTH SWEDISH DIVING DUCKS IN NON-BREEDING SEASON

[1] ASCHOFF JURGEN, 1962, JOUR ORNITHOL, V103, P2, DOI 10.1007/BF01670845

[2] BALAT F, 1967, VAR FAGELVARLD, V26, P99

[3] BAUER KM, 1969, HANDBUCH VOGEL MITTE, V3

[4] BRECKENRIDGE R, 1953, AUK, V70, P201

[5] Gibb J., 1954, Ibis, V96, P513, DOI 10.1111/j.1474-919X.1954.tb05476.x

[6] HANSSON L, 1966, VAR FAGELVARLD S4, P95

[7] HEIN D, 1966, WILSON BULL, V78, P301

[8] HOCHBAUM HA, 1960, TRAVELS TRADITIONS W

[9] KING B, 1961, 12 WILDF TRUST ANN R, P166

[10] KLIMA MILAN, 1966, ZOOL LISTY, V15, P317

[1] ASCHOFF JURGEN, 1962, JOUR ORNITHOL, V103, P2, DOI 10.1007/BF01670845

[2] BALAT F, 1967, VAR FAGELVARLD, V26, P99

[3] BAUER KM, 1969, HANDBUCH VOGEL MITTE, V3

[4] BRECKENRIDGE R, 1953, AUK, V70, P201

[5] Gibb J., 1954, Ibis, V96, P513, DOI 10.1111/j.1474-919X.1954.tb05476.x

[6] HANSSON L, 1966, VAR FAGELVARLD S4, P95

[7] HEIN D, 1966, WILSON BULL, V78, P301

[8] HOCHBAUM HA, 1960, TRAVELS TRADITIONS W

[9] KING B, 1961, 12 WILDF TRUST ANN R, P166

[10] KLIMA MILAN, 1966, ZOOL LISTY, V15, P317