Black-crowned night heron Nycticorax nycticorax Location: National Zoo, Washington, DC Year: 1988 Merckslides catalogue number: 04 -15380 Comments: A volunteer.

Black-crowned night heron Nycticorax nycticorax (juvenile) Location: National Zoo, Washington, DC Year: 1988 Merckslides catalogue number: 04 -15377 Comments: A volunteer. One of many juveniles that hung out near the bird house ponds at the zoo and nested on top of the flight cage.

Black-crowned night heron Nycticorax nycticorax (subadult) Location: Ala Moana Park, Honolulu, HI Year: 2012 Merckdigitals catalogue number: 04-78653 Comments:

Black-crowned night heron Nycticorax nycticorax (subadult) Location: Ala Moana Park, Honolulu, HI Year: 2012 Merckdigitals catalogue number: 04-78654 Comments:

Black-crowned night heron Nycticorax nycticorax (subadult) Location: Ala Moana Park, Honolulu, HI Year: 2012 Merckdigitals catalogue number: 04-78656 Comments:

Black-crowned night heron Nycticorax nycticorax (subadult) Location: Ala Moana Park, Honolulu, HI Year: 2012 Merckdigitals catalogue number: 04-78657 Comments:

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