Black-crowned Night-Heron

Juvenile:

* Eyes yellowish to amber, legs dull greyish
* Yellow base to bill
* Brown head, neck, chest and belly streaked with buff and white
* Wings and back darker brown with large white spots at the tips of the feathers; spots especially large on the greater secondary coverts

Una serie de 3 fotografías de martinete coroninegro de Juan C. Aguero.

Juvenile:

* Eyes yellowish to amber, legs dull greyish
* Yellow base to bill
* Brown head, neck, chest and belly streaked with buff and white
* Wings and back darker brown with large white spots at the tips of the feathers; spots especially large on the greater secondary coverts

© Juan C Aguero (juanKa)

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© Juan C Aguero (juanKa)

Nigth Heron portrait

Una serie de 2 fotografías de martinetes.

Black-crowned Night-Heron
(Nycticorax nycticorax)

Photo by Juan Aguero (juanKa)
Anhinga Trail, Everglades National Park

"Beautiful" Night heron (Anhinga Trail, thursday5)

Behavior:
Black-crowned night herons are social at all times of the year, associating with other species of herons frequently. In the winter, it roosts communally. It is a migrating species. The normal call is a 'Qua,' 'Quak,' or 'Quark.' These calls are most often given in flight or from a perch. The fact that this night heron feeds throughout the night means that it avoids competition with day herons which use the same habitat. Feeding sites are used repeatedly. When feeding, it alights on water feet first, or plunges from the air. When walking, it usually keeps its head and neck lowered, and it rarely runs. It may retract its feet when flying on cold days in order to conserve heat. The young leave their perches and huddle in the nest when cold. Black-crowned night herons defend both feeding and nesting territory. The young can be aggressive, regurgitating or defecating on human intruders. (Davis, 1993)(read more)
Ivory, A. 2002. "Nycticorax nycticorax" (On-line), Animal Diversity Web. Accessed February 06, 2009 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Nycticorax_nycticorax.html.

Photos by Juan Aguero (juanKa)
Anhinga Trail, Everglades National Park
Camera Canon 40D, Lens Canon 300mm L IS

Black-crowned Night-Heron (Nycticorax nycticorax)

Conservation Status:
Overall, populations stable. Because of wide distribution and feeding habits, the Black-crowned Night-Heron is an excellent indicator of ecosystem health. You can help scientists learn more about this species by participating in the Celebrate Urban Birds! project.(read more)

Photo by Juan Aguero (juanKa)
Fakahatchee Strand Preserve State Park
Camera Canon 40D, Lens Canon 100-400mm L IS

Black-crowned Night-Heron

Black-crowned Night-Heron (Nycticorax nycticorax)

Conservation Status

Overall, populations stable. Because of wide distribution and feeding habits, the Black-crowned Night-Heron is an excellent indicator of ecosystem health. You can help scientists learn more about this species by participating in the Celebrate Urban Birds! project.(read more)

Photos by Juan Aguero (juanKa)
2007-2008