Took a portrait of Mr. Pelican today with my Tamron 150-600mm lens at 600mm

Brown Pelican, bird in flight. Shot with a Nikon D600 using a Tamron 150-600mm lens, shot handheld.

Portrait of a Brown Pelican. This was taken with the Tamron at 600mm with the camera in DX mode for the 35mm equivalent of 900mm. It was waaaay out in the water. Shot handheld.

Portrait of a leopard.