Pandion haliaetus
Long, slender wings, dark brown upperparts and white underparts. Quite short tail. Distinct black carpal patches, finely barred flight-feathers and tail, and conspicuous broad dark eye-stripe. Soars with angled/bowed wings. Glides with wings bent at carpal joint.
Calls with sequences of short, soft and clear whistling notes. Often in series with rising pitch, then ending with a few lower pitched notes.
Wikipedia: map (se also Xeno-canto below)
Birdlife ecology