1. Tricolored Heron Egretta tricolor ruficollis, juvenile/first winter, Sussex County, Delaware, USA, November 5, 2006. Note how the rufous juvenile head and neck coloration is gradually being replaced with a more adult purple color. For images of a Tricolored Heron in juvenile plumage from earlier in the year, click here. Nikon D80; Nikkor 70-300mm f4-5.6G AF lens (@300mm); 1/500, f6.3, ISO 200.

2. Tricolored Heron E. t. ruficollis, juvenile/first winter, Sussex County, Delaware, USA, November 5, 2006. Another image of the same bird. Nikon D80; Nikkor 70-300mm f4-5.6G AF lens (@300mm); 1/500, f5.6, ISO 320.