Friday 18 September 2015

Exciting Resighting: Female or Male?

I posed the question above to the Western Cape Birding Forum last weekend for the following photo of a Cape Rockjumper:


Except it was a trick question. The bird is in fact an immature bird ringed in 2013 during our first round of Cape Rockjumper captures. At the time I registered the bird as a youngster based on the brown, not red, iris, buff wing spots and residual gape. But I also called it a possible female and duly gave the bird a one colour identification ring.

This past season Gavin Emmons was helping Krista Oswald catch more Cape Rockjumpers. He took the following photos of a splendid male – with yellow ring. Thanks to the colour band we know he is the same bird from 2013! Very exciting to get this resighting :)


Centre of attention: here fellow family members direct their calls to male yellow. Photo courtesy of Gavin Emmons.



Below is a photo of a juvenile Cape Rockjumper, probably only 1-3 months old, from the Swartberg Mountain range.

Note the black, not red, iris


And this is how they start off life. Sad thing though: >60% of nests fail; which is pretty much the norm for ground nesting birds. 


2 comments:

  1. Not long now!

    So many interesting things in these photos. Even the rocks have caught my eye, the red inclusions ( ? or lichen?) are different

    ReplyDelete
    Replies
    1. Yes - the red on the rocks is a kind of lichen.

      Delete

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