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SIBLING SPECIES OF SMALL AFRICAN HONEY‐GUIDES
Author(s) -
Chapin James P.
Publication year - 1962
Publication title -
ibis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.933
H-Index - 80
eISSN - 1474-919X
pISSN - 0019-1019
DOI - 10.1111/j.1474-919x.1962.tb08626.x
Subject(s) - beak , geography , range (aeronautics) , ecology , distribution (mathematics) , sibling species , biology , mathematical analysis , materials science , mathematics , composite material
SUMMARY It is now clear that Indicator exilis does not have so extensive a range or so many geographic races as were attributed to it only a few years ago. Alongside exilis , over a large part of its distribution in forested tropical Africa, lives a sibling species, I. willcocksi , of somewhat more greenish colouration, usually more streaked on the crown. On the higher mountains in the Kivu region of Central Africa dwells a third species, I. pumilio , of small size, with beak proportionately still smaller. A fourth species, I. meliphilus , markedly paler grey beneath than any of the preceding, is restricted to rather dry regions from eastern Africa to Nyasaland and Angola. Many details of distribution and geographic variation will require further investigation.