Scopoli's Shearwater vs Streaked Shearwater

Scopoli's Shearwater

Calonectris diomedea

Large535 gMarine

Scopoli's shearwater is 45–52 cm (18–20 in) in overall length with a wingspan of 112–122 cm (44–48 in). The upperparts are brownish-grey with most feathers fringed with a lighter brown. The wings are a darker brown. The upper tail-coverts are tipped whitish and the tail is dark brown. The underparts are mostly white with a brown border which is most prominent of the trailing edge of the wing. The bill is pale yellow with a dark patch near the tip. The legs and feet are a pale flesh colour. The sexes are similar in appearance but the male is on average slightly larger than the female.

ID text from Wikipedia, CC BY-SA 4.0

Recorded by Carlo Fracasso · Ventotene, Provincia di Latina, Lazio, Italy · CC0

Photo: Smailtn · CC0

Streaked Shearwater

Calonectris leucomelas

Large580 gMarine

This shearwater has broad wings with a brown upperside and white underwings. The head and neck are flecked white to almost complete white. The face and underparts are all white. The bill is grey to pink with a dark tip while the feet are pinkish-grey. Streaked shearwaters have a body length (from tip of bill to end of tail feathers) of 45 to 52 centimetres (18 to 20 in) and a wingspan between 103 and 113 centimetres (41 and 44 in).

ID text from Wikipedia, CC BY-SA 4.0

Photo: WATANABE Hitoshi 渡辺仁 (tbc_watanabe) · CC BY 4.0

Photos and recordings are credited to their authors under the licence shown. Full profiles: Scopoli's Shearwater and Streaked Shearwater.