In many respects autumn was remarkably slow. But November turned everything upside down! Like in spring (with an Alpine Swift), the girls...

There's a big if - but another big redpoll invasion could be in the making. The if depends on stuff like weather conditions, and the exa...

First proof that it's the nominate subspecies of Hume's Leaf Warbler that reaches Europe. Aerobics, the final countdown and warbler taxon...

Autumn 2016 was nothing less than perfect. But this autumn, well... it was a bit boring to be honest. I missed most good vis mig days, ri...

On 14 July I stumbled upon a calling Iberian Chiffchaff (ca 45th record) in my hometown The Hague. Since calling birds are probably overl...

Spring 2016 was mind-blowing: good migration, loads of rarities and a few nice influxes due to seemingly never ending easterlies. But thi...