black-crowned night heron by: tabitha edwards february 10, 2014 period: 3
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Black-Crowned Night Heron
Black-Crowned Night HeronBy: Tabitha EdwardsFebruary 10, 2014Period: 3
Latin Name:Nycticorax nycticorax
Common Name:Black-Crowned Night Heron
Male and female take turns caring for the youngAdults are light-gray birds with a neatly defined black back and black crown, weigh 2 lbs
Immatures are brown with large white spots on the wings and blurry streaks on the under parts
Adults have all-black bills; immatures have yellow-and-black bills
Life History & Physical CharacteristicsReproductionSexually mature at 2 yearseggs are laid at 2 day intervals, beginning 4-5 days after pair formationIncubation lasts 24-26 days3-5 young per pair
Food & Water PreferenceOpportunistic FeederMainly FishLeechesEarthwormsInsectsCrayfishAmphibiansRodentsCarrionPlant MaterialsGarbage
Food & Water Preferencesprefers to feed in shallow watersgrasps its prey with its bill instead of stabbing it'bill vibrating'-opening and closing the bill rapidly in water, creates a disturbance which lures preyevening to early morning
Habitat
RangeTerritoryNestFeeding grounds
Ecology and BehaviorWhen feeding: plunges from the air onto water When walking: usually keeps its head and neck lowered rarely runsCrepuscular huntersGregarious
Predators
CrowsHumansParasites
None known
Diseases
Bird flu
Status & Cause for ListingDelaware: endangered Number and size of colonies have declined
Federal: not listed as threatened, endangered, or extinctall migratory birds are protected under the federal Migratory Bird Treaty Act of 1918.
Conservation Management NeedsHabitat construction and protectionNesting groundsWetlandsMonitor predators of young
Impacts to Ecosystem if EliminatedIncrease in herons prey species
ConclusionThe Black-Crowned Night Heron isMigratoryGregariousCrepuscularBeautifulUnique So we need to help protect their colonies to ensure that they can beautify Delaware for many years to come
Referenceshttp://www.allaboutbirds.org/guide/black-crowned_night-heron/idhttp://animaldiversity.ummz.umich.edu/accounts/Nycticorax_nycticorax/#reproductionhttp://www.nhptv.org/natureworks/blackcrown.htmhttp://birds.audubon.org/species/blanig2
Thank YouQuestions?
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