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Published byKimberly Jenny Modified over 10 years ago
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HERON FAMILY family Ardeidae order Ciconiiformes
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Herons, Egrets, Bitterns Green Heron Great Egret Great Blue Heron Yellow Crowned Night Heron Black- Crowned Night Heron Least Bittern American Bittern Close to shore Wade in deeper water Motionless near log or bank Reeds Shallow at night
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Shy Strong fliers S-shape Migratory
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ADAPTATIONS Legs Toes Bill Neck Powder down areas of feathers Serrated middle claw
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PREDATORS/CARNIVORES
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NESTING Defend territory Colonies – rookeries Solitray Mixed colonies – herons Stick nest – trees – herons & egrets Grass nest – ground – bitterns Incubation 2 ½-4 week depending upon species Some incubate when 1 st egg is laid Altricial - remaining in nest 2 -3 weeks
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FEEDING YOUNG Regurgitate Partly digested food Whole fish, frogs, snakes Trigger
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PREY Foxes Minks Hawks Raccoons Crows and tree-climbing snakes may rob unguarded nests.
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MALES Aggressive – fight Harsh calls Elaborate & instinctive motions Bright colors
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VISITORS TO PA Little Blue Cattle egret Snowy egret
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GREAT BLUE HERON 38 long and 70 wingspan Largest of dark herons Ardea herodias
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EGGS Incubation by both sexes -28 days 3-6 3 weeks Mom & dad feed chicks
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HABITAT Saltwater or freshwater Remote Near trees Loss Propagation areas
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GREEN-BACKED HERON Small – 14 long & wingspread 25 Butorides striatus
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HABITAT
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NESTING Shrubs Trees Orchards Pair Loose colony Not as friendly as blue Twigs & sticks Flimsy Male selects & starts Female finishes
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GREAT EGRET Casmerodius albus 32 long & 55 wingspread, 2 tall
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CONSERVATION LAWS
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DIET Fish Small mammals Amphibians Insects
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HABITAT Colonies 10-50 trees Beech & red maple w/other heron species Swamps Lakes Ponds Susquehanna river shallows Islands and mudflats Habitat
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NESTING Nest lined with leaves, moss, grass 3-4
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BLACK -CROWNED NIGHT HERON Nycticorax nycticorax
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FOOD Carnivore
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HABITAT Fresh, salt and brackish waters, Forests Thickets even city parks!
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NESTING 3-5 eggs Incubation 24-26 days Both sexes build nest 2-5 days
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YELLOW-CROWNED NIGHT HERON
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BLACK VS. YELLOW Longer legs Higher pitched call Yellow patch head Black & white head
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DIET Frogs Fish Lizards Salamanders Insects
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NESTING 3-5 eggs Incubation 24-26 days Both sexes build nest 2-5 days
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AMERICAN BITTERN Botaurus lentiginosus
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AMERICAN BITTERN
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NESTING Solitary nesters Ground platform of cattails, reeds, or grasses 3 – 7 eggs
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LEAST BITTERN Ixobrychus exilis
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HIDING
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FOOD
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NESTING 4 -5 eggs
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