共 15 条
- [1] Gibb J., 1950, Ibis, V92, P507, DOI 10.1111/j.1474-919X.1950.tb01759.x
- [4] Halbersleben D.L., 1922, POULTRY SCI, V1, P143, DOI [10.3382/ps.0010143, DOI 10.3382/PS.0010143]
- [5] KLUIJVER HN, 1951, ARDEA, V391, P1
- [6] LACHLAN C, 1968, THESIS U DURHAM
- [7] LACK DAVID, 1958, ARDEA, V46, P91