Breeding Biology and Food Habits of the Musk Duck (Biziura Lobata)

1962 through October 544 musk ducks adult male musk Atriplex semibaccata Barrenbox Swamp birds BIZIURA LOBATA BREEDING BIOLOGY breeding males breeding season Carthamus lanatus Ceratophyllaceae Chenopodiaceae Cirsium vulgare collected at Barrenbox confidence limits Convolvulaceae Crustacea CSIRO cycle correlated inversely Cynodon dactylon Cyperaceae DAILY TEMPERATURE F DUCK BIZIURA LOBATA gizzard Gramineae included Polygonum J-F M-A M-J L. W. Braithwaite larvae Leguminosae lobe area M-A M-J J-A M-J J-A S-O male musk ducks Malvaceae Marsileaceae MEAN DAY LENGTH MEAN OOCYTE DIAMETER MEAN TESTIS VOLUME Medicago spp monthly MUSK DUCK BIZIURA musk duck's diet musk ducks collected musky odour N-D J-F M-A Najadaceae Nitraria schoberi non-breeding males Numbers indicate sample occurred in 36 Polygonaceae Potamogeton Potamogeton sp preen gland quantities of grit S-O N-D J-F Salviniaceae seeds September 1962 sexual immatures summer testis cycle TESTIS VOLUME CC Trichoptera tubules unidentified species trace various food items VOLUMES OF GRIT water areas water levels Zygophyllaceae