Kestrel. I thought this bird was a male when it showed a grey tail on landing, but (with the help of Dick Forsman's 1999 'Raptors') I've identified it as an adult female.
The underparts have light streaking, and spots, - not the heavy streaking of a juvenile. The cere and feet are yellow, (tinged green in juv). The bird is moulting its flight feathers and tail: some primaries are missing and 3 tail feathers are not fully grown, (first such moult occurs when a year old).
The crown, posterior eye stripe, and moustache are pale - perhaps indicating a young bird (? 2 or 3cy). Upperparts are brown with typical black flat triangular bars. Tail has grey feathers with black bars and broad subterminal band, (Forsman quotes a study finding 40% of 2cy females with grey in tail, and up to 75% of older birds).
