| Bufflehead are uncommon within the refuge during the Spring, and common during Fall and Winter. |
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| Oyster Rocks, February 18, 2007, Canon 30D, EF 100-400mm F/4.5-5.6L IS USM |
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| Oyster Rocks, February 18, 2007, Canon 30D, EF 100-400mm F/4.5-5.6L IS USM |
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| Oyster Rocks, February 18, 2007, Canon 30D, EF 100-400mm F/4.5-5.6L IS USM |
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| Petersfield Ditch, Broadkill Road, January 08, 2005, Canon 10D, EF 100-400mm F/4.5-5.6L IS USM |