Rosella nest box activity

["Philip Veerman via Canberrabirds " <>]

I had much the same and had one or either species using my nest box each
year for three or maybe 4 years. This was I think 2011 till 2015. Until I
had Mynas and then bees, which prevented the rosellas using it. As for the 2
rosella species, I found they interacted like you describe but never any
serious disturbance (or not that I could detect and I could not see into the
box).

Philip

-----Original Message-----
From: Canberrabirds
 On Behalf Of
j.stewart.deans--- via Canberrabirds
Sent: Sunday, 5 October, 2025 4:17 PM
To: 
Subject: Rosella nest box activity

Hi
I have installed a rosella nest box and last year had a pair of Eastern
rosellas occupy the box.
This year a pair of Crimson rosellas nested. We have seen the Easterns
return and on occasion have seen the female enter the box.
While the Crimsons are obviously nesting and will chase the Easterns away,
the Easterns still turn up and will enter if no one is there.

Is this common behaviour and will the Eastern interfere with the eggs or
what happens?

Stewart


--