Wildlife Science
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Browsing Wildlife Science by Subject "Breeding"
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Item The Breeding Biology of Certain East African Horn Bills (Bucerotidae).(1932-1936) Moreau, R.E.; East African Agricultural Research Institute AmaniAlthough the habits of hornbills have long been recognised as exceptionally interesting, little in the way of connected observations on their behaviour at the nest has been published for any species. The first concern of anyone finding a nest has nearly always been to cut down the tree or at least break open the hole. Chapin's notes on Bycanistes albotibialis (1931) and Hoesch's on Lophoceros fiavirostris lcucomelas (1934) are exceptional; but there still appear to be no records through all the stages of a hornbill's nesting without interference, conclusive if not fatal, by man. Of the three species for which I am able to put forward original observations in this paper, two of them, Bycanistes cristatus and Lophoceros deckeni, have,' so far as I can discover, not had their nesting described in any way before.Item The Comparative Breeding Ecology of Two Species of Euplectes (Bishop Birds) in Usambara(1938) Moreau, R.E.; Moreau, W.M.; East African Agricultural Research Station, AmaniEUPLECTES NIGROVENTRIS CASSIN, the Zanzibar red bishop, and Eh hordeacea (Linn.), the crimson-crowned bishop, are weavers of the subfamily Ploceinae. On the biology of the former species nothing appears to have been recorded hitherto except the notes reproduced by Reichenow (1904) and those of Vaughan (1929), who (rightly) suspected it to be polygamous. For Euplectes hordeacea we take the work of Lack (1935) as basis and amplify only certain points. Our study is more incomplete than we should have wished because we could not make continuous observations and because of an unexpected technical difficulty. The males of both these bishop birds have a highly conspicuous red breeding dress and are at other times practically indistinguishable in the field from females and young. Both are territory-holding species dependent on grasses for their food and their nesting materials. The architecture of their nests, which are similar except in size, demands close upright vegetation. The rather restricted geographical range of E. nigroventris is wholly contained in that of E. hordeacea. The two species may often be found side by side, but in our experience there is little ecological overlap; the smaller E. nigroventris
