28th Nov 2017 – Parrot Crossbill Invasion
Back in early October, a number of Parrot Crossbills appeared in Shetland. Like other crossbills, this is an irruptive species, occasionally moving south and west out of their normal home in Scandinavia and further east in response to food shortages. The last major irruption was in late 2013 and it seemed like we might be […]