ECOLOGICAL ASPECTS OF SOME MIXED-SPECIES FORAGING FLOCKS OF BIRDS

[1] Allee W. C., 1938, SOCIAL LIFE ANIMALS

[2] Bates H. W., 1962, NATURALIST RIVER AMA

[3] BATTS HL, 1957, PAP MICHIGAN ACAD SC, V42, P69

[4] Beebe William, 1947, ZOOLOGICA [NEW YORK], V32, P153

[5] Belt Thomas., 1874, NATURALIST NICARAGUA

[6] BENT AC, 1938, 170 US NAT MUS B 2

[7] BENT AC, 1937, 167 US NAT MUS B 1

[8] BREDER CM, 1967, ZOOLOGICA-N Y, V52, P25

[9] BREDER CM, 1959, AM MUS NAT HIST BULL, V117, P393

[10] BREWER RICHARD, 1961, WILSON BULL, V73, P348

[1] Allee W. C., 1938, SOCIAL LIFE ANIMALS

[2] Bates H. W., 1962, NATURALIST RIVER AMA

[3] BATTS HL, 1957, PAP MICHIGAN ACAD SC, V42, P69

[4] Beebe William, 1947, ZOOLOGICA [NEW YORK], V32, P153

[5] Belt Thomas., 1874, NATURALIST NICARAGUA

[6] BENT AC, 1938, 170 US NAT MUS B 2

[7] BENT AC, 1937, 167 US NAT MUS B 1

[8] BREDER CM, 1967, ZOOLOGICA-N Y, V52, P25

[9] BREDER CM, 1959, AM MUS NAT HIST BULL, V117, P393

[10] BREWER RICHARD, 1961, WILSON BULL, V73, P348