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Citation

Christy P & Maisels F (2007) Grey-necked Picathartes Picathartes oreas use man-made structures to breed. Malimbus, 29 (2), pp. 126-128. http://malimbus.free.fr/contents/tocm29.htm#top

Abstract
First paragraph: The Gey-necked Picathartes Picathartes oreas is well known for its specific nesting requirement: a tall, slightly overhanging rock face, which does not allow rain to fall into the nest (Thompson & Fotso 1995). For example, all nests recorded on Mt Cameroon were on overhanging rock faces (Tye 1987). Nests are constructed either on an isolated rock usually not far from a forest stream, or inside a cave. In addition the rock face has to be high enough to allow the birds to construct the nest at least 2 m from the ground (Fry et al. 2000). The only published exceptions are a nest found on the trunk of a tree in Cameroon (Waltert & Mühlenberg 2000) and one in a hollow, cave-like log (Fry et al. 2000).

Journal
Malimbus: Volume 29, Issue 2