Tuesday, April 09, 2013

Digiscoped Blue Tit

Merlin sex mystery

I watched this Merlin on the Nene Washes on Saturday (6 April). When I saw it in flight, I thought it was a brown bird, but it perched on the damp grass and revealed itself to be blue-grey with red-brown fringes. Aha, thought I, this is the fringing on a young male, which would have hatched last year. Now, I'm not so sure.
One of my digiscoped photographs shows the outrspread wings and tail, confirming the golden fringed feathering and barring and the barred, rather worn tail. I put it up on Twitter as a sort of bird quiz and Katie Fuller was first to repsond that the bird was a young male Merlin, from last year's brood. She also sent me a link to a paper by Blasco-Zumeta & Heinze about Merlin ID. Intriguingly, this paper contains some photos in the hand of a Merlin labelled as a male-like female (which I had never heard of before). I took the liberty of taking some screengrabs of the pdf to embed here, so you can see what the male-like female Merlin looks like.
You can see a strong resemblance between the male-like female (top right) and the Nene Washes bird, including the rather odd blotchy underpart pattern; the overall blue-grey upperparts with browner fringing all over and no clear areas of truly adult male like blue grey (unlike the juvenile male in the centre photo). Even the central tail pattern (seen in the flight shot; though it may be the eye of faith) looks more like female than the male.
Again in these photos, from a differnt angle, the Nene Washes bird seems to most closely resemble the male-like female shown.
Finally, I repeat the flying shot, so you can compare the wing pattern with the spread wings above.
Until yesterday, I had never heard of male-like female Merlins, but now I wonder if that is what I took to be a young male on Saturday. What do you think?

Tuesday, April 02, 2013

Redwings in horse manure

Barn Owl, Deeping High Bank

Last week in March, 2008, I was on 125 (inc 17 'elites'). Year total: 189 (my record total)
Last week in March, 2009, I was on 131 (inc 22 'elites'). Year total: 187
Last week in March, 2010, I was on 126 (inc 15 'elites'). Year total: 177
Last week in March, 2011, I was on 130 (inc 18 'elites'). Year total: 182
Last week in March, 2012, I was on 134 (inc 21*(22) 'elites'). Year total: 183
Last week in March, 2013, I am on 128 (inc 20*(21) 'elites'). Year total: ??
 * () Modern counting with Smew as an 'elite'

Here is the traditional state of my personal PBC (Peterborough Bird Club area) year list summary, as of the end March.
Highlights of what feels like quite a productive first three months (despite awful weather), include a self-found Great White Egret, a Hawfinch for the first time since 2009, multiple Brent Geese, and an early Sandwich Tern (only the fourth time I've recorded this species), plus the sheer abundance of Waxwings. Though the overall total is relatively weak, the number of 'elite' species – species which are very scarce and unreliable annually – is good, and that is what really matters.


Monday, March 18, 2013

Med Gull at Ferry Meadows CP

Bird on far left
Displaying at bemused Black-headed Gulls, to assert its hierarchical position
Colour-ringed (red ring with white writing on left leg) adult summer Mediterranean Gull at Ferry Meadows CP, 16.3.13. Bird was found by Don Gardener

Wednesday, March 13, 2013

Alternative (Weedonian) Cambs bird photo of 2012

Here are my favourite photos from Cambridgeshire, that I took last year
Great Crested Grebes, Ferry Meadows CP
Common Scoter, Ferry Meadows CP
Cranes, Nene Washes
Dunlin, Serpentine BP
Firecrest, Murrow
Green Woodpecker, Ferry Meadows CP
Little Stint, Maxey pits
Merlin, Nene Washes
Reed Bunting, Nene Washes
Scaup, Eye Green LNR
Temmincks Stint, Serpentine BP
Waxwing, Fengate
Wheatear, Maxey pits
Yellowhammer, Maxey pits