12th May

12th May: apart from the Subalpine Warbler, quiet for grounded passerine arrivals today although waders increased at Ferrybridge incl 46 Sanderling; steady passage of arriving Swallows all day; 24 Sanderling and 1 RtDiver through on the sea; 14 migrants ringed with CCs still outnumbering WWs

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— Portland Bird Observatory (@portlandbirdobs.bsky.social) May 12, 2026 at 10:52 PM

First-summer female Subalpine Warbler trapped at the Obs and just released in the Obs Quarry - if we had to put money on it it's a Western but tail mostly v worn juvenile so no help!

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— Portland Bird Observatory (@portlandbirdobs.bsky.social) May 12, 2026 at 12:33 PM


A bit more detail on the Subalpine Warbler © Martin Cade: 




Not surprisingly considering the dip in temperature, overnight mothing at the Obs rather uneventful but the summers's first Pine Knot-horn a nice stray/migrant. Nice random find by day of the not often noticed but probably quite common day-flyer Fruitlet-mining Tortrix.

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— Portland Bird Observatory (@portlandbirdobs.bsky.social) May 12, 2026 at 10:42 PM