A set of snaps of the American Horned Lark with various plumage details. It'd be great if someone could nail the ssp. of this Staines Res long stayer! #rbnmega #londonbirds

American Horned Lark having a stretch this afternoon at Staines Res. Took some finding late pm, was on north bank of main causeway. #rbnlnd #rbnmega #londonbirds #eremophilaalpestris

American Horned Lark (alpestris or hoyti, according to those who know), at Staines this am. Distant at 200m+ or so, a dirty digiscoped shot. #rbnmega #rbnLND #londonbirds

Common Rock Thrush, Pwll-du, Wales, still showing like a rash! Beautiful adult male. #rbnmega

A short video of yesterday's 1st-summer female Amur Falcon at Polgigga, Cornwall: https://youtu.be/pe7l6Y7PoUo #rbnmega #rbncwl

Amur Falcon, Polgigga, Cornwall on 07/07/17. #rbnmega

A snoozy Amur Falcon in Polgigga, Cornwall, just after 6am. Fab driving by @devilbirder ! #rbnmega

Brunnichs Guillemot Anstruther "showing well" @BirdGuides #rbnMEGA

You'll see better, but here's my Great Knot photo. Titchwell beach 19.30 #rbnMEGA

Hudsonian Whimbrel at Trenow Cove. I remember when they used to be rare #rbnMEGA

Hudsonian Whimbrel at Church Norton this morning #rbnMEGA #slowtwitching http://t.co/7tLlV66sZv

Chinese pond heron Hythe in sheep field off Green Lane 09.25-09.55 at least and showing very well. #rbnMEGA

Wow! Another Shetland 2nd for Britain following last yrs Magnolia Wblr MT @rbnUK: CAPE MAY WARBLER 1 Shetland #rbnMEGA #rbnSHI via @robfray