Red-billed vs Silver Gulls

To: "Birding Aus" <>
Subject: Red-billed vs Silver Gulls
From: "Ross Silcock" <>
Date: Thu, 24 Jul 2003 14:40:09 -0500
Hi all:
Interesting discussion by Rohan on diffs between Silver and Red-billed
Gulls.  The following pics show the difference in P8 (alt plumage) very
well- shouldn't be too tough to pick out in flight.

Ross Silcock
Tabor, Iowa, USA

New Zealand Land and Pelagic Trips

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