On reverse migration in Pallas’s Warbler’s, encounters with Coal Tits and Poms and the missing universe
Pomarine Skua On Tuesday my lovely Red Setter, Dillion, had a check-up with the oncologist at Cambridge university small animal hospital. This being a follow-up to his surgery and radiotherapy for a soft tissue sarcoma a few months ago. I’m very pleased to say all looks OK apart from some thickening around the hock which is probably just scar tissue from the radiotherapy but he needs to be checked again in 2 months. A Pallas’s leaf warbler had been found at the weekend just 2 miles from the animal hospital at Paradise Fen nature reserve so I thought it would be very rude not to drop in and see it on the way home. Pallas's leaf warbler ( Phylloscopus proregulus ) breeds in mountain forests from southern Siberia to north east China. It winters in southern China and south east Asia. A few, however, exhibit what is called reverse migration, i.e. they head off for their wintering grounds in the opposite direction to normal and end up in Europe. For some reason there has...