Uneasy tolerance

In yesterday’s post about Ancroft’s fledge (got the name right now, rings are so much easier!) a fourth juvenile was present on the nest. She is proving to be a regular visitor.

I’m in charge
(c) Forestry Commission England

Blue 8P is Ayle, from Nest 1A. She was first seen in a clip on Monday. She had possession of a fish and wasn’t going to share it. Press HD on all videos for best quality.


Later in the day, Ayle was on the nest as a clip began. The female was near her, but flew without trying to ease Ayle off.

Ayle has a fish in her talons
(c) Forestry Commission England

Ancroft received a peck when he tried to take the fish.

Ancroft gets a peck, not a trout
(c) Forestry Commission England

In the evening, the adults ignored Ayle and the female fed Archer.

a crowded nest
(c) Forestry Commission England

On Tuesday, Ayle was ready and waiting when the male brought lunch.

Ayle is first to the fish
(c) Forestry Commission England

The female landed a little later. Ayle retained the fish.

the female watches Ayle feeding
(c) Forestry Commission England

Early yesterday it was back to normal as the Nest 3 youngsters dozed in light rain.

(c) Forestry Commission England

But by late afternoon Ayle was back and eating. Again!

Ayle eats as the residents preen
(c) Forestry Commission England

Interruptions weren’t welcome.

Acomb is elbowed out
(c) Forestry Commission England

It’s not uncommon for post-fledge juveniles to visit other nests in the area. At Kielder, we’ve seen brief landings in most years but typically the youngsters on the nest have mantled and jumped at the intruder.

Prolonged stays by “visitors” are rarely reported in the UK – but this may only be because there are relatively few osprey nests to be visited.

This article by Alan Poole describes his observations (in the USA) on a much higher-density population than Kielder. This longer-term type of nest visiting may be happening in the UK more often than we realise. The events on Nest 3 are similar to some of Poole’s findings. When she arrived, Ayle 8P was the only fledged osprey and is at least a week older than all the Nest 3 offspring. She is now behaving as the dominant youngster when food arrives, in so far as the footage shows. On Nest 1A, she was second-in-line and so probably in a less strong position at feeding times.

Archer and Acomb have still to fledge. Despite the upheaval and sometimes very limited space on the nest they are exercising. Archer seems to have overtaken Acomb – which she should, as the eldest.

a high leap by Archer
(c) Forestry Commission England


This entry was posted in Nest 3, Osprey updates, UK and tagged . Bookmark the permalink.

2 Responses to Uneasy tolerance

  1. Jo says:

    Fascinating to see this Joanna ……. supported by video. Is Ayle still feeding on 1A?

  2. joannadailey says:

    We can’t say, Jo, because we’ve no nestcam at the moment and there is no near viewpoint to i/d leg rings

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