19th March

The fair weather remained firmly established and the day's events unfolded much as they had done yesterday, with only a light scatter of grounded arrivals but a steady passage of both overhead migrants and waterfowl. Both Wheatear and Chiffchaff just managed double figure totals at the Bill, where singles of Black Redstart and Firecrest were still about; more of the same elsewhere included another Black Redstart at Reap Lane. Visible passage was poorly recorded but included a steady flow of Meadow Pipits and alba wagtails over the Bill, where customary oddballs including a few Wood Pigeons, Stock Doves, Jackdaws and singles of Sand Martin and Siskin; elsewhere, a wandering Red Kite appeared over the Beach Road. The sea was a little quieter than yesterday, with 177 Common Scoter, 9 Red-throated Divers, 7 Shoveler and a Greylag Goose the best of the rather pedestrian passage off the Bill. 

Always a spectacle, it was Common Scoters that dominated proceedings over the sea...


...a few Red-throated Divers were again on the move...


...and Shovelers again featured on the dabbling duck front © Martin Cade:


In fair weather and a brisk easterly the lack of even sample coverage of visible migration on West Cliffs was a serious shortcoming in the day's recording effort but maybe just reflects how much the birding scene has changing from something that was formerly for most a predominantly semi-serious data gathering exercise to what's latterly become largely a leisure activity for those seeking personal gratification from listing or posting photographs of social media. It was apparent during our seawatch at the Bill tip that the flow of inbound pipits and wagtails contained the likes of a few pigeons and Jackdaws but, sadly, these and whatever else of higher quality was mingled in processed northward along West Cliffs without ever being quantified in any meaningful way © Martin Cade:


We're forever puzzled by the status of the Brimstone butterfly at Portland. As far as we understand it - or at least this is what Good's Flora of Dorset tells us - the two larval foodplants, Buckthorn and Alder Buckthorn, are absent from the island so you'd expect the butterfly to be quite a scarcity; however, every year seems to produce a really pretty decent spread of records - this year alone we've heard of at least half a dozen sightings to which this one today in the Obs garden is the latest addition. The butterfly's a powerful flyer so are these all strays from the mainland - or even, like the one watched arriving in off the sea last year during a migration of whites, Red Admirals and Painted Ladies - immigrants from the continent, or are we overlooking a small but mobile resident population that are established on specimens of one or other of the foodplants that have escaped the attention of the botanical recorders? © Martin Cade: