Love the bison in the river, and the dolphin shots are outstanding. Shot from a boat??
Thanks folks!
No, not from a boat, they come in close to shore. There's interesting physical geography in this area and the Firth narrows and then curves as it comes into the Inner Firth, and on the corner is a point that sticks into the loch and the powerful currents caused by the tide squeezing through has carved a deep channel just offshore through which salmon run and the dolphins scoot about in there and hoover stuff up. This will give you an idea of what it's like, and how close to people they come:
And I mostly use a 300mm f2.8 sometimes with a 1.4x, which has taken most of the shots here, but occasionally I use a 500mm f4 with 1.4x and 2x but that can be a bit much - the following shot was taken one afternoon when the dolphins were waaaay too close for my waaaaaaaay too long lens, but the effect is nice!
More snacking:
It can be nice if they appear in evening light:
And after thousands of shots taken at 1/1000 sec I decided to start using nothing faster than 1/2 sec and this is what has resulted:
Just to give you an idea of the size of these animals - these are Northern Bottlenose (Tursiops truncatus) which have evolved to survive in the cold water of the North Sea/North Atlantic. They are more than twice the size of caribbean dolphins and are incredibly powerful. They can be 4m long and up to 350kg for a big male, but typically between 150kg and 300kg.
They love to bowride and will come into the city with the oil tankers, and the tour boats can get in close to see them - note this shot is with a 700mm lens so the tour boat is not as close to the dolphin and bow-wave as it looks - they do responsible tourism up here and are strictly regulated.
There's a couple of articles I've written about this work (it was part of a major documentary project)
here and
here.