Bird Breeding Season

To: "COG-L" <>
Subject: Bird Breeding Season
From: "Lindsay Hansch" <>
Date: Mon, 21 Apr 2014 15:56:36 +1000

Reviewing my Garden Bird Survey numbers recently, it occurred to me that this season gone was a particularly poor breeding one for Jerrabomberra.  Our resident pair of Swans had a failed attempt in Spring and so far have not attempted an Autumn nesting.  We usually see around 20 young Swamp Hens per season, this year we had only 5 from two nests.  Moorhens produced only 2 young – usually at least 12-15.  No Coots produced at all.  Even our resident pair of Magpies produced only 1 young for the year and I did not see a Magpie Larks nest.  There were no Grebes nesting and only one family of Black Ducks. The exception has been Crimson Rosellas with significant numbers of green birds around.  I wonder if this poor season is reflected elsewhere?  A possible reason for the poor return on water birds may be the decline in typhus reeds around the local lake for which most birds rely on for nest sites.




Lindsay Hansch  

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