|To:||Veerman Philip <>, chatline <>|
|Subject:||Fwd: [canberrabirds] late breeding record for Australasian Grebe|
|From:||Michael Lenz <>|
|Date:||Wed, 18 Mar 2020 20:51:52 +0000|
in 2007 I have written in CBN [32(2) 102-105] about late breeding of the A. Grebe in our area, the starting point was a nest with eggs in early Feb. 2007 in Harrison. The breeding season for Canberra by different sources is given from September to March. However, the late part of that season refers largely to observations of pairs with dependent young rather than indicating that clutches can be found over such long periods.
After flooding events opportunistic breeding has been recorded in different parts of Australia from August to April (HANZAB). In 2007 Rhonda and Lindsay Hansch (in Jerrabombera) had a pair with 4 young, no older than 2 weeks on 11 April. Taking incubation period etc. into account, incubation would have started in early March.
So by all accounts, these late breeding events are rare in OUR area. Christine D. informed me yesterday that she has a pair nesting in the Goulburn area. We may well find more cases.
---------- Forwarded message ---------
From: Philip Veerman <>
Date: Thu, 19 Mar 2020 at 00:06
Subject: late breeding record for Australasian Grebe
To: chatline <>
Yes, maybe. It depends if breeding is typically timed according to date, or calendar, by that I mean time of year. That might be normal for permanent water. However if breeding is timed according to having available water, from recent rains after a very long dry period, then I wouldn’t think it is late, it is correct timing……..
Today(18 Mar) on a farm dam on the eastern side of Lake George was a pair of Australasian Grebes, incubating a clutch of eggs. This very late breeding, no doubt, triggered by the recent rains.
It may be worthwhile for observers to check out other smaller bodies of water. Other pairs of Australasian Grebes may have the same idea.
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