Tulus Simatupang
Heron and Red-winged Blackbird, Burnaby Lake, British Columbia, Canada
Nearly 30,000 photos were submitted to the contest, showing the diversity of life on Earth, from rare wildlife to breathtaking landscapes.
A panel of judges selected a group of finalists, who were voted upon by the public to determine the grand prize winner.
Canada's Tulus Simatupang took home the grand prize for his spectacular photo of a blue heron and red-winged black bird swooping over Burnaby Lake in British Columbia.
As part of the grand prize, Simatupang's photo will be featured on the cover of the Nature Convervancy's 2015 calendar.