FLEXIBLE HELPER STRUCTURE AS AN ECOLOGICAL ADAPTATION IN THE PIED KINGFISHER (CERYLE-RUDIS-RUDIS L)

[21] HAMILTON WD, 1964, J THEOR BIOL, V7, P1, DOI [10.1016/0022-5193(64)90038-4, 10.1016/0022-5193(64)90039-6]

[22] LIGON JD, 1978, NATURE, V276, P296

[23] Maynard Smith J., 1972, American Naturalist, V106, P447

[24] McClure H.E., 1974, MIGRATION SURVIVAL B

[25] MIGONGO EWK, 1978, THESIS U NAIROBI

[26] PARRY V, 1973, Emu, V73, P81

[27] EVOLUTION OF COOPERATIVE BREEDING IN BIRDS [J]. IBIS, 1975, 117 (04) : 531 - 534

[28] ROWLEY I, 1976, 16TH P INT ORN C, P657

[29] SELANDER ROBERT K., 1964, UNIV CALIF PUBLICATIONS ZOOL, V74, P1

[30] SKUTCH ALEXANDER F., 1961, CONDOR, V63, P198, DOI 10.2307/1365683

[21] HAMILTON WD, 1964, J THEOR BIOL, V7, P1, DOI [10.1016/0022-5193(64)90038-4, 10.1016/0022-5193(64)90039-6]

[22] LIGON JD, 1978, NATURE, V276, P296

[23] Maynard Smith J., 1972, American Naturalist, V106, P447

[24] McClure H.E., 1974, MIGRATION SURVIVAL B

[25] MIGONGO EWK, 1978, THESIS U NAIROBI

[26] PARRY V, 1973, Emu, V73, P81

[27] EVOLUTION OF COOPERATIVE BREEDING IN BIRDS [J]. IBIS, 1975, 117 (04) : 531 - 534

[28] ROWLEY I, 1976, 16TH P INT ORN C, P657

[29] SELANDER ROBERT K., 1964, UNIV CALIF PUBLICATIONS ZOOL, V74, P1

[30] SKUTCH ALEXANDER F., 1961, CONDOR, V63, P198, DOI 10.2307/1365683