JOHNSTON: CAYMAN ISLAND AVIFAUNA


 APPENDIX III: STOMACH CONTENTS OF
 CAYMAN ISLAND BIRDS
 The birds utilized in these analyses were collected in either April or August,
chiefly from Grand Cayman. The numbers in parentheses represent the numbers of
bird stomachs examined, A= animal food, V=plant food, and an asterisk (*) in-
dicates a predominant food item. When more than one stomach was examined, the
percentages for A and V are mean values. Nomenclature for the insect items follows
that of Borror and DeLong (1964) and for plant foods, that of Asprey and Bobbins
(1953) or Long and Lakela (1971).

Butorides virescens (2). A, 100%7 Isopoda; Odonata, Libellulidae; Orthoptera,
 Acrididae, Cyrtacanthacridinae; Hemiptera, Belostomatidae, Belostoma (?)*; Co-
 leoptera, Carabidae*, Dytiscidae.
Porzana carolina (1). V, 100%. Sedge seeds.
Columba leucocephala (1). V, 100%. Elaeocarpaceae, Muntingia*.
Zenaida aurita (1). V, 100%. Cyperaceae, Scleria', Rhynchospora*; Poaceae,
 Panicum; legumes; Empetraceae, Ceratiola; Myrtaceae, Eugenia; Asteraceae,
 Cirsium.
Columbina passerina (2). V, 100%. Cyperaceae, Scleria*; Commelinaceae, Com-
 melina*; Asteraceae, Cirsium.
Leptotila jamaicensis (1). V, 100%. Cyperaceae, Scleria; Convolvulaceae, Ipomoea;
 legumes; Elaeocarpaceae, Muntingia; Rosaceae, Prunus; Empetraceae, Ceratiola.
Amazona leucocephala (2). V, 100%r. Caricaceae, Carica.
Crotophaga ani (3). A, 87%/; V, 13%. Arachnida, Araneida; Orthoptera, Acrididae,
 Cyrtacanthacridinae; Odonata, Coenagrionidae(?), Aeshnidae(?); Lepidoptera,
 Noctuidae, Nymphalidae(?); Coleoptera, Scarahaeidae, Chrysomelidae(?), Cur-
 culionidae*, Tenebrionidae; Homoptera, Cicadellidae; Hemiptera, Pentatomidae,
 Coreidae(?), Scutelleridae*, Chelysoma; Diptera head; Hymenoptera, Vespidae3.
 Vertebrate: Anolis conspersus.
 Sedge seeds; Passifloraceae, Passiflora.
Tyto alba (ca. 50 pellets). Invertebrate- Paguridae, Coenobita cylpeatus, Coleoptera;
 Reptilia- Aristelliger praesignis; Aves-Egretta thula, Centurus superciliaris,
 Elaenia martinica, Mimus polyglottos, Dumetella carolinensis, Dendroica sp.?,
 Coereba flaveola, Quiscalus niger, Melopyrrha nigra; Mammalia-Rattus rattus*,
 R. norvegicus, Mus musculus*, Brachyphylla nana, Artibeus jamaicensis.
Colaptes auratus (19). A, 97%; V, 3%. Arachnida, Araneida; Coleoptera, Cer-
 ambycidae, Bostrichidae(?); Hymenoptera, Formicidae, Formica*; Isoptera,
 Rhinotermitidae*.
 Unidentified fruit fragments.
Centurus superciliaris (16). A, 56%; V, 44%. Arachnida, Araneida, Seytodes
 fusca; Orthoptera, Cryllidae, Acrididae*; Coleoptera, Curculionidae, Otior-
 hynchinae, Tenebrionidae; Hymenoptera, Formicidae, Vespidae(?).
 Hyla septentrionalis, Sphaerodactylus lewisi.
 Moraceae, Ficus; Caricaceae, Carica*.
Tyrannus dominicensis (1). A, 100%. Homoptera, Cicadidae*.
Tyrannus caudifasciatus (5). A, 96%; V, 4%. Orthroptera, Gryllidae; Coleoptera,
 Curculionidae*, Carabidae, Buprestidae, Polycesta; Hymenoptera, Vespidae,
 Vespula(?), Formicidae, Myrmicinae. Hyla septentrionalis, Anolis conspersus*.
 Burseraceae, Bursera simaruba; Passifloraceae, Passiflora.
Myiarchus stolidus (4). A, 89%; V, 11%. Arachnida, Araneida; Orthoptera,
 Gryllidae; Lepidoptera; Coleoptera, Cerambycidae*, Oedemeridae*; Hemiptera,
 Scutelleridae, Chelysoma(?)*; Hymenoptera, Tiphiidae(?), Andrenidae, Colleti-
 dae, Colletes, Vespidae(?).
 Burseraceae, Bursera simaruba; unidentified seeds.


1975