Winter Flocks of N. Friarbirds

To: OZ Bird Listserve <>
Subject: Winter Flocks of N. Friarbirds
From: WM James Davis <>
Date: Sun, 8 Jun 1997 08:50:58 +1000 (EST)
To those interested in watching behaviour:

  Currently, in Brisbane small to large flocks of Noisy Friarbirds are
moving through the canopy of the neighbouring forest (e.g. Mt Coot-tha).
They are feeding, calling (various vocalizations) and apparently defending
a small area around their "current" patch of flowers.  However, after
careful observations the interactions between birds also seem to suggest
that some birds are tolerate of encroachment by specific individuals --
instead of overtly attacking, the "resident" bird approaches and calls to
the encroachee.  Assuming that my observations truely reflect the facts,
I ask the following questions:  1) Are the "resident" birds in fact males
that display less aggression toward females, young etc.?  2) Can thhe
small feeding territories be consider mobile leks? 3) Are N. Friarbird
promiscuous?  Currently, I have failed to find any published literature
that provides relevant information.  

Cheers, Jim Davis

Dr. Wm. James Davis

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