Carrion Crows with white/grey feather markings

摘要

Carrion Crows Conns corone with white feathers (pure white and leucistic) are mentioned in books about Yorkshire birds (Chislett, 1952; Mather, 1986). More recently several Carrion Crows with piebald feathers (particularly on the wings) have been seennear Scarborough (Leyland, 1998), around Filey (Lombard, 2012) and in East Park, Hull (Gomez, 2014). Elsewhere in Northern England increasing numbers of Carrion Crows with white markings on their wings have been reported along the coast in South Northumberland (see comment by Northumbrian Birding in response to the blog by Gates, 2012).