Canopy gleaners
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WillowWarbler L: 12 cm (4·5") The Old World warblers are mostly small, slim, thin-billed birds, favouring either the foliage of trees and bushes or wetland habitats . The Willow Warbler is a small, nondescript olive-green warbler with off-white underparts, a conspicuous pale eyebrow that extends behind the eye, and pinkish-brown legs . The similar but uncommon Icterine Warbler (not illustrated) is bulkier, has a broader, spike-like bill, lacks the distinct eyebrow and has lead-grey legs (it also lacks a dark stripe in front of the eye usually shown by Willow Warbler) . The Willow Warbler’s habitat choice of woodlands and gardens, and its lively and restless demeanour, eliminate many look-alike species . Although this spring and summer (September–April) visitor from Eurasia is common to abundant throughout Kruger, it can be easily overlooked due to its small size and unobtrusive nature . A simple “hoo-eet” contact call is often the first clue to its presence . Yellow-breasted Apalis L: 12 cm (4·5") This small, long-tailed, canopy-dwelling, warbler-like bird has green upperparts, a grey head with a striking red eye, and a yellow breast and white belly separated by a variable black bar (sometimes lacking in the female) . It is a common resident in mixed woodlands throughout Kruger, where it may be seen feeding actively in the canopy of thorn trees, sometimes in mixed-species flocks, flicking its tail as it moves . However, it is most often detected by its repeated, grating “chrr-eek-chrr-eekchrr -eek” territorial call given in duet by both sexes . Long-billed Crombec L: 11 cm (4·5") Crombecs are tiny, rotund and virtually tailless warbler-like birds, usually first recognised by their shape . The Long-billed Crombec has buff-orange underparts, an indistinct eyebrow, grey-brown upperparts, and a fairly long, dark, downcurved bill . It is a common resident throughout Kruger, where it may be seen singly or in mixed-species flocks hopping actively along branches, and occasionally hanging underneath like a nuthatch, searching for its mainly invertebrate food . It has a quiet but distinctive faltering “chirrit, chirrit, chirrit” song, and quavering “prrrp” call . Canopy gleaners 126 BIRDS OF BROADLEAVED WOODLAND AND CAMPS yellow-breasted apalis long-billed crombec willow warbler 127 ...