JOHNSTON: CAYMAN ISLAND AVIFAUNA TABLE 8.-BIRDS OF LIMESTONE FORESTS. Island: GC GC GC LC CB Species Date: December Apr-May August August June-Aug Columba leucocephala Zenaida aurita Zenaida asiatica Columbina passerina Leptotila jamaicensis Amazona leucocephala Coccyzus minor Ty!to alba Colaptes auratus Centurus supcrciliaris Tyrannus dominicensis Tyrannus caudifasciatus A!Myiarchus stolidus Elacnia martinica Dumetella carolinensis Mimocichla plumbea Vireo crassirostris Vireo altiloquus Vireo magister Mniotilta varia Parula americana Dendroica petechia Dendroica virens Dendroica citellina Setophaga ruticilla Cocreba flaveola Spindalis zena Quiscalus niger Melopyrrha nigra Total Species U* FC FC* FC* U U0 FC* U C FC* C FC* FC* VC VC* U U FC U0 C CO U U U U C FC* U U VC VC* U FC* U* C FC* 15 21 FC* C U U* U U U VC* VC* U U0 U6 FC* C C* FC* 10 11 * known or suspected breeders 7 8 to the feeding behavioral patterns of these four species. The avifaunal composition of this "scrub woodland" census is most closely comparable to that of the relative abundances for towns, house sites, and roadsides in Table 10. BID POPULATIONS AND UPLAND SECONDARY PLANT SUCCESSION Although detailed studies of secondary plant succession have not been carried out in the Cayman Islands, apparently some of the major ecologi- cal formations (plant communities) discussed above should be considered as climax: sea grape-almond woodland, mangrove forests, and limestone forest. (Some of the relatively dry buttonwood areas may not be cli- max.) At any rate, all the evidence from these islands, and chiefly from