G'day Mark & others
These birds have been around for a while and are breeding in the greater
Rockingham area. There appear to be two populations of Roseates in WA - a
spring breeding population and an autumn breeding one. This has been the
subject of an extended discussion between several people over here (Mark
Newman, Alan Collins, Robyn Pickering, and to a lesser extent me) about
possible differences between the populations and whether there could
potentially be two subspecies present. There are a number of records in the
literature of autumn breeding Roseates in WA, both in the Perth area and furter
north at the Abrolhos
Cheers,
John
> Date: Mon, 14 Jun 2010 13:45:25 +0800
> From:
> To:
> Subject: [Birding-Aus] Juvenile Roseate Tern at Rockingham, WA.
>
> While enjoying brunch on the Rockingham foreshore yesterday (June 14) a
> group of 5 Roseate Terns turned up including a juvenile which landed on the
> beach and was fed a couple of times by an adult. Could this indicate a very
> late breeding event by Roseate Terns? Mid June seems unusually late. The
> Silver Gulls in this part of the world are autumn as well as spring
> breeders. Perhaps Roseate Terns are following their lead?
>
> Mark Stanley
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