canberrabirds

FW: Seeking advice

To: Canberrabirds <>
Subject: FW: Seeking advice
From: Geoffrey Dabb via Canberrabirds <>
Date: Mon, 3 Mar 2025 00:45:42 +0000

Aha.  It looks as if ephemeropterists can lay down their nets.  Peter Cranston has mentioned the possibility of a heavy dew.  When I was approaching Bungendore I needed to use screenwipers despite apparently clear weather.  It seems I was photographing falling dewdrops.

 

 

 

 

From: Canberrabirds <> On Behalf Of Geoffrey Dabb via Canberrabirds
Sent: Monday, 3 March 2025 10:32 AM
To: Canberrabirds <>
Subject: [Canberrabirds] Seeking advice

 

I need an entomologist.  At least that’s what  I think I need.  Lake George again, early morning.  My early snaps captured zillions of tiny pale spots along with birds (example below, might need enlargement)). I must have got only those in the shallow focal field.  I thought ephemeroptera (mayflies).  A closer snap of ducks (3 species) shows the spots as rosette shapes (attachment).  Extreme enlargement shows rosettes of a strangely baroque pattern (bottom).  I think these might be captures of light striking the heads of the insects.  Before I go into this further I would like confirmation I am not wildly astray in thinking mayflies. Perhaps a different insect?

 

 

 

 

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