Unlike Mallards, these birds are more wary of humans, so don’t expect to get too close. According to Cornell’s All About Birds http://www.allaboutbirds.org/guide/bufflehead/lifehistory/ac#at_consv :
- The Bufflehead nests almost exclusively in holes excavated by Northern Flickers and, on occasion, by Pileated Woodpeckers.
- Unlike most ducks, the Bufflehead is mostly monogamous, often remaining with the same mate for several years.
- The Bufflehead lays eggs more slowly than most other ducks, commonly with intervals of two or three days between eggs.
The takeoff sequence was shot at Braddock Bay, which is a major stop-over on the eastern inland migration flyway. It is located on the south shore of Lake Ontario. Upon reaching this area, most birds will continue northward by circling the Ontario shoreline in an easterly or westerly direction since there are few updrafts over the lake, resulting in the expenditure of more energy.