February 2018 I spent a good part of the winter 2017/18 with studying vocalisations of Red Crossbills Loxia curvirostra, Parrot Crossbills Loxia pytyopsittacus and the very close related Common Redpoll Acanthis flammea (or Lesser Redpoll A. cabaret, Mealy Redpoll A. flammea and Arctic Redpoll A. hornemanni if you like). Parrot Crossbill Loxia pytyopsittacus, 2CY, male Cones! Red Crossbill Loxia …

Continue Reading