Last Wednesday I took a trip to the Tees Estuary hoping I might be in with a chance of catching up with a couple of rarities - the glossy ibis and the small blue butterfly. In the event I was successful with neither but still found a few things to catch my interest.
Starting at Saltholme RSPB I headed initially to Paddy's Pond, having found the pollinator garden virtually free of pollinators. Here the view was largely dominated by a huge number of black-headed gulls with just a few pochard and shovelers for a little variety. Turning back afterwards however, I did start to see some butterflies and was pleasantly surprised to find, on a path interestingly marked "Wrong Way", my first wall brown of this year.
Not sure how I missed it earlier, but I then immediately happened upon a nice area of banked flower meadow where there was another first of season sighting - at least 15 common blues, all but one of them male.
 | | Wall Brown |
|  | | Common Blue |
|
A couple of orange-brown butterflies passing over the same area couldn't be identified.
The common blue turned up at several points as I wandered around the site but only one other female appeared.
Adjourning for lunch in the café, I was able to observe some common (I think) terns hovering to hunt insects from the surface of the water, the view occasionally interrupted by hunting sand martins from a man-made nesting wall.
 | | Tern hovering...then diving |
| |
Unfortunately I didn't manage to film one of the terns actually splashing into the water.
Here again there were a few pochards and shovelers.
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| Pochard |
Next destination was the Fire Station Pond, which was where the glossy ibis had been reported. However I knew the chances of seeing were slim as the last sighting noted on the whiteboards was a few days earlier on 21st May, after having appeared fairly consistently for some while beforehand.
What I did see was two juvenile and one mature avocet and still more shovelers. Simply because it was so big and placid, I finally persuaded myself to photograph the single black-headed gull.
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| Young Avocets |
 | | Female Shoveler |
|  | | Black-headed Gull |
|
It seems I forgot to get one of the male shoveler. A bigger miss however was a flyover by a marsh harrier which was too brief to do much about.
Next I drove to nearby
Dorman's Pool, the possible site for the small blue. Being unfamiliar with the site though, I made the error of following the signs to the hide, which turned out not to be the right place at all and only resulted in me seeing a damselfly.
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| Azure Damselfy? |
A more promising area proved to be the walk along the private road and North towards the viewpoint. here there was some kidney vetch, the larval food plant for the small blue, though much more bird's foot trefoil and hence several more common blue, this time including several females.
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| Female Common Blue |
There was another wall brown and, noticeably scarcer this year, a speckled wood as well as - so hard to find last year but hard to avoid this - a single dingy skipper.
 | | Speckled Wood |
|  | | Dingy Skipper |
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It was more than a little frustrating that, with other things to do, I ran out of time to complete the whole of the path. So no small blue but hopefully I'll start looking in the right place next time!
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