kimerajamm
Joined: 28 Nov 2010
Posts: 785
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 Posted: Mon Apr 25, 2011 2:02 pm Post subject: Survival of fairywrens |
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Survival of fairywrens from one season to the next is generally high for such small birds, and the Red-winged Fairywren has the highest rate of all—with 78% of breeding males and 77% of breeding females surviving from year to year.[27] It is not unusual for Red-winged Fairywrens to reach 10 years of age, and the oldest known individual to date attained an age of 16 years.[28]
[edit] Distribution and habitat
Karri Forest near Pemberton,
the preferred habitat
The Red-winged Fairywren occurs in the wetter, southwest corner of Western Australia, from Moore River north of Perth south through to the Margaret River region and east to Albany.[3] It is common in parts of its range,[29] though there is some evidence of decline from draining of swampland.[30][31] It lives in the understorey of Karri (Eucalyptus diversicolor) and Jarrah (Eucalyptus marginata). Older forests appear to be less favourable habitats, while birds appear to be attracted to disturbed areas after logging.[32] Fire also results in populations disappearing, returning after a period of two years.[33] Forestry plantations of pine (Pinus spp.) and eucalypts are generally unsuitable as they lack undergrowth.[
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