20th May

5 Turnstones, 2 Spot Flys and a WW at the Bill, a Reed W at Perryfields and 7 Sanderlings at Ferrybridge the best of the few new arrivals on the land today. 3 GNDivers and a Balearic Shearwater through off the Bill. A WW at Culverwell and a House Sparrow at the Obs the only birds ringed today.

— Portland Bird Observatory (@portlandbirdobs.bsky.social) May 20, 2025 at 9:54 PM

This alba wagtail has been hanging around at Ferrybridge for a fortnight or so but we'd never really had a decent view of it until the last couple of evenings when it's been settled right beside the Visitor Centre - we're guessing it must be the bird reported quite regularly throughout this period as a White Wagtail. We really weren't at all sure what it is save to say that it just doesn't look right for a pure White Wagtail - amongst other things, its flanks look too extensively dirty and its rump distinctly has some darkness mixed in with the grey; more likely a hybrid White x Pied? © Martin Cade:

Vast swathes of Blackthorn around the Obs have now been totally enveloped in ghostly webbing as the caterpillars of the Orchard Ermine moth Yponomeuta padella begin to spread out.

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— Jodie mae Henderson (@jodiemhenderson.bsky.social) May 20, 2025 at 12:43 PM

oddly in my 6 years on portland i had never visited yeolands quarry pool. at least 20 red veined darter males but just the one female paired and another on the footpath just S of the quarry

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— andylportland.bsky.social (@andylportland.bsky.social) May 20, 2025 at 6:02 PM

my first lulworth skipper of the year came down to the edge of yeolands quarry pool where a few small blues also ventured.

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— andylportland.bsky.social (@andylportland.bsky.social) May 20, 2025 at 6:08 PM