use, such as falconry as well as endangered species in which there is local or national
interest and funding. The morphology of spermatozoa from the species listed in Table 5
varies from the sauropsid spermatozoa of the pheasant, goose and sandhill crane, to the
passerine type, with its helical nucleus sparrow and budgerigar. and the raptor type,
with its more rounded nucleus, so that simple morphology does not seem to be a barrier
to successful frozen storage of avian spermatozoa. The major effort for extending this
technology to other non-domesticated avian species apart from funding!. is more likely
to be the development of husbandry systems suitable for captive breeding of given
species by AI, rather than the development of a protocol for freezing of semen.