Birds of Indian Subcontinent

Changing Nest Placement of Hawaiian Common Amakihi during the Breeding Cycle

Publication Type:Journal Article
Year of Publication:1993
Authors:III, Cvan Riper, Kern, MD, Sogge, MK
Journal:The Wilson Bulletin
Date Published:1993
ISBN Number:00435643
Keywords:Chlorodrepanis, Chlorodrepanis virens, Fringillidae, Hemignathus, Hemignathus virens, Loxops, Loxops virens, Viridonia, Viridonia virens
Abstract:We studied the nesting behavior of the Common Amakihi (Hemignathus virens) from 1970-1981 on the island of Hawaii to determine if the species alters nest placement over a protracted 9-month breeding season. Birds preferentially chose the southwest quadrant of trees in which to build nests during all phases of the breeding season. It appeared that ambient temperature (Ta) was a contributing factor to differential nest placement between early and late phases of the annual breeding cycle. When Ta is low during the early (December-March) breeding period, Common Amakihi selected exposed nesting locations that benefitted them with maximum solar insolation. However, in the later phase of the breeding period (April-July) when Ta was much higher, renesting birds selected nest sites deeper in the canopy in significantly taller trees. This is one of the few documented examples in which a species changes location of nest during a breeding season, thus allowing exploitation of temporally differing microclimatic conditions.
Short Title:The Wilson Bulletin
Taxonomic name: 
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith