Bluetit Diary    Mar 2009 (4)

 

 

Friday 6th March, 2009

Something odd happens in Box2 today.  It looks as though Bertie mistakes Bella for a challenger!

Bertie arrives at the box's entrance.  He looks as though he is already in a bit of a mood as his feathers are a bit fluffed up.

He gives a sideways glance ...

... and in he goes.

This all happens pretty quickly.

Immediately he is inside the box, however, he flies back up to the entrance, and stays there in a defensive posture.

This continues for some time!

Back on the floor of the box, he is still displaying.

Thirteen seconds later he is still at it.

Back up to the hole again.

Finally he appears to be calming down ...

... but it's over 30 seconds later before he has fully recovered his self control!

Another 15 seconds and he leaves the box.

Now, I have examined the records produced by the external camera during this period and can see no sign of anything that could upset Bertie like this.  Odd!