INTERSPECIFIC TERRITORIES OF BIRDS

[91] Trousdale B., 1954, Condor, V56, P110

[92] WEEDEN JUDITH STENGER, 1959, AUK, V76, P343

[93] WELLS PHILIP V., 1958, AUK, V75, P223

[94] WILLSON MF, 1963, 16 P INT C ZOOL WASH, V3, P342

[95] WILSON KA, 1938, AUK, V55, P187

[96] Wynne-Edwards V. C., 1962, pUnpaginated

[91] Trousdale B., 1954, Condor, V56, P110

[92] WEEDEN JUDITH STENGER, 1959, AUK, V76, P343

[93] WELLS PHILIP V., 1958, AUK, V75, P223

[94] WILLSON MF, 1963, 16 P INT C ZOOL WASH, V3, P342

[95] WILSON KA, 1938, AUK, V55, P187

[96] Wynne-Edwards V. C., 1962, pUnpaginated