Silver Gull Aerial Predation

To: "'birding-aus'" <>
Subject: Silver Gull Aerial Predation
From: "Jon Irvine" <>
Date: Thu, 9 Dec 2010 22:00:02 +1100
Several months ago there was a B-Aus post asking about Silver Gulls flying
around the top of the Sydney Harbour Bridge at night. Some suggested that
this behaviour was associated with feeding on insects attracted to the
lights at the top of the bridge. I have just captured a shot from my balcony
of a Silver Gull amongst a flock of 50-100 birds circling near my apartment
at Homebush Bay. On a warm Sydney night they were snapping up tiny insects
flying in the air. A photo of one of the protagonists is here:

Please excuse the crudity of the photo; I have enjoyed a few glasses of
Pinot Gris which has obviously impacted on my photographic abilities.
However, you can see that the gull is homing in on a very tiny object. It's
pleasing to see that these gulls, at least, expend some energy in catching
live prey rather than cashing in on human left-overs.

Jon Irvine


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