TDN169's picture

Off St Ives

Observed: 24th August 2012 By: TDN169TDN169’s reputation in Mammals
_MG_1713
Description:

Possible Dolphin? Not sure.

Identifications
Species interactions

No interactions present.

Comments

Syrphus's picture

If it was a dolphin or whale,

If it was a dolphin or whale, the +- rigid fin would be rapidly moving, and the animal would likely break the surface frequently. Basking Sharks move much more slowly, and rarely show the back, though usually the snout and tail-tip will be visible at times. The BS fin is floppy and the tail sweeps side-to-side (in dolphins it goes up-and-down). That should help you decide between shark and dolphin/whale, but not the species of dolphin which needs more than just the fin. My guess would be Basking Shark.

M.

TRY

recording wildlife with The Recorder's Year on www.hbrg.org.uk/TRY.html.