Showing posts with label herons. Show all posts
Showing posts with label herons. Show all posts

Friday, April 8, 2016

American Bittern


American Bittern is rarely seen stalking prey in reedy marshes. The medium size heron is filmed in typical habitat as it easily blends in with marsh grasses. This is my first clear capture of this elusive bird.
This streaky, brown and buff heron can materialize among the reeds, and disappear as quickly, especially when striking a concealment pose with neck stretched and bill pointed skyward. These stealthy carnivores stand motionless amid tall marsh vegetation, or patiently stalk fish, frogs, and insects. They are at their most noticeable in spring, when the marshes resound with their odd booming calls that sounds like the gulps of a thirsty giant.
Size & Shape
American Bitterns are medium-sized herons with thick, compact bodies. They have shorter legs and thicker necks than typical herons and a slightly hunched posture. The daggerlike bill is long, straight, and sharply pointed. The wings are broad but the wingtips are somewhat pointed.

Color Pattern
American Bitterns are mostly warm brown, buff, and white. They are strongly streaked, especially on the neck, and they can be very hard to see against marsh vegetation. In flight the dark outer wings contrast sharply with the brown of the rest of the bird.

Behavior
Bitterns are stealth predators and typically stand motionless as they wait for prey to approach, or stalk it with barely perceptible motions. They adopt a classic pose when alarmed, with the beak pointing straight up, helping this streaky bird blend in with its reedy background. They tend to forage alone.

Habitat
Look for American Bitterns in shallow freshwater marshes, typically toward the margins and among reeds and other vegetation; they are rarely out in the open.
https://www.allaboutbirds.org/guide/American_Bittern/id

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American Bittern

Sunday, January 17, 2016

Great Blue Herons Nesting in Florida



Beautiful mating pair of Great Blue Herons building their nest in central Florida. The largest Heron in North America standing over 4 feet tall - they are always exciting to capture especially in their spectacular breeding/mating plumage. This early stage of nest building the male brings small sticks to the female to build the base and they spend a lot of time, as in this video, bonding!

Male Great Blue Herons collect much of the nest material, gathering sticks from the ground and nearby shrubs and trees, and from unguarded and abandoned nests, and presenting them to the female. She weaves a platform and a saucer-shaped nest cup, lining it with pine needles, moss, reeds, dry grass, mangrove leaves, or small twigs. Nest building can take from 3 days up to 2 weeks; the finished nest can range from a simple platform measuring 20 inches across to more elaborate structures used over multiple years, reaching 4 feet across and nearly 3.5 feet deep. Ground-nesting herons use vegetation such as salt grass to form the nest.

Great Blue Herons nest mainly in trees, but will also nest on the ground, on bushes, in mangroves, and on structures such as duck blinds, channel markers, or artificial nest platforms. Males arrive at the colony and settle on nest sites; from there, they court passing females. Colonies can consist of 500 or more individual nests, with multiple nests per tree built 100 or more feet off the ground.
Nesting Facts
Clutch Size 2–6 eggs
Number of Broods 1-2 broods
Egg Length 2.4–3 in 
Egg Width 1.8–2 in 
Incubation Period 27–29 days
Nestling Period 49–81 days
Egg Description Pale blue, fading slightly with age.
Condition at Hatching Bluish eyes open, chick covered in pale gray down, able to vocalize.
https://www.allaboutbirds.org/guide/Great_Blue_Heron/lifehistory


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Great Blue Herons Nesting