The SoM Snipe illusion

Last Saturday I drove back from Rainham Marshes (Cattle Egret and Common Scoter under my belt) and stopped off for a second look at the Patch; this time in heavy rain. I wanted to see if anything had been brought down on the lakes of Wanstead Park. It was a worthwhile trip as I scored a patch record of 57 Teal, all on Heronry, and a couple of Snipe feeding on the inaccessible western fringe of the Shoulder of Mutton. I posted a poor quality back-of-camera record shot on social media and went home to dry off and go about some other business.

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Common Snipe (Gallinago gallinago)

I was busy in a meeting and blissfully aware that people were viewing my photo and noticing that one of the snipe was seemingly smaller, crouching, and strongly marked. Unbeknownst to me, a whole debate ensued about whether it was actually a Jack Snipe. When I eventually logged in I re-checked my photos and assured everyone that the birds were similar size, with very long bills and a pale (not dark) central crown stripe. Debate over. I never doubted this when looking at the birds for one second, even though I had noticed the strong markings on one of the birds.

However, a week later (today), this doubt emerged like a horrid aftertaste in my own mouth. I approached SoM lake with Bob regaling him with the story of how other people had tried to string my Snipe into a Jack Snipe, (Lol!) when I saw them again in exactly the same place.

We crept around the side of the lake to get a better view. One of the Snipe was perching on top of a log and the other was pressed up against it but standing in the water below it. In a matter of seconds a wave of confusion and slight horror passed over me. The bird on the log was noticeably smaller than the partially submerged bird, much more strongly marked and was the only bird to be showing its bill which looked medium in length. This  is roughly what I was looking at through my bins:

IMG_6197v2

Snipe on log looking apparently much smaller than the one partially obscured next to it

The bird on the log briefly turned its head and we seemed to see a dark crown stripe. Bob and I exclaimed together: Jack Snipe! My emotions were mixed. Jack Snipe is a Patch tick – great! but there were two snipe in the same place last weekend that were definitely both Snipe! Am I going mad?!

But it must have been some form of multiple optical illusion. The Snipe‘s partially obscured bill (covered in mud or sometimes under the mud – as below) looked shorter than it was.

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A seemingly short bill – actually just hidden in mud

The size difference was largely down to posture, and the dark crown stripe was actually a side stripe and the central stripe was light.

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Both Common Snipe after all

So, I still can’t tick Jack Snipe, but at least my sanity and pride are mostly still intact.

 

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