GRADED FREQUENCY VARIATIONS OF THE TREMOLO CALL OF THE COMMON LOON (GAVIA-IMMER)

[1] ANDREW FJ, 1961, BEHAVIOUR, V17, P224

[2] VOCAL COMMUNICATION AND INDIVIDUAL RECOGNITION IN PINON JAY, GYMNORHINUS-CYANOCEPHALUS [J]. ANIMAL BEHAVIOUR, 1977, 25 (AUG) : 567 - 584

[3] INDIVIDUAL RECOGNITION BY SONG IN WHITE-THROATED SPARROWS .3. SONG FEATURES USED IN INDIVIDUAL RECOGNITION [J]. CANADIAN JOURNAL OF ZOOLOGY-REVUE CANADIENNE DE ZOOLOGIE, 1975, 53 (12): : 1749 - 1761

[4] CHAMBERLAIN DR, 1971, AUK, V88, P613

[5] Dunlop E. B., 1915, British Birds London, V9

[6] FRANKLIN V, 1974, INTRO LANGUAGES

[7] HOPKINS C D, 1974, Zeitschrift fuer Tierpsychologie, V34, P313

[8] HUND A, 1942, FREQUENCY MODULATION

[9] Jay P., 1965, P197

[10] Konishi M., 1963, Z TIERPSYCHOL, V20, P349, DOI [DOI 10.1111/J.1439-0310.1963.TB01156.X, 10.1111/j.1439-0310.1963.tb01156.x]

[1] ANDREW FJ, 1961, BEHAVIOUR, V17, P224

[2] VOCAL COMMUNICATION AND INDIVIDUAL RECOGNITION IN PINON JAY, GYMNORHINUS-CYANOCEPHALUS [J]. ANIMAL BEHAVIOUR, 1977, 25 (AUG) : 567 - 584

[3] INDIVIDUAL RECOGNITION BY SONG IN WHITE-THROATED SPARROWS .3. SONG FEATURES USED IN INDIVIDUAL RECOGNITION [J]. CANADIAN JOURNAL OF ZOOLOGY-REVUE CANADIENNE DE ZOOLOGIE, 1975, 53 (12): : 1749 - 1761

[4] CHAMBERLAIN DR, 1971, AUK, V88, P613

[5] Dunlop E. B., 1915, British Birds London, V9

[6] FRANKLIN V, 1974, INTRO LANGUAGES

[7] HOPKINS C D, 1974, Zeitschrift fuer Tierpsychologie, V34, P313

[8] HUND A, 1942, FREQUENCY MODULATION

[9] Jay P., 1965, P197

[10] Konishi M., 1963, Z TIERPSYCHOL, V20, P349, DOI [DOI 10.1111/J.1439-0310.1963.TB01156.X, 10.1111/j.1439-0310.1963.tb01156.x]