Showing posts with label raptors. Show all posts
Showing posts with label raptors. Show all posts

Sunday, November 27, 2016

Osprey Sky Dance And Mating Calls



High Definition Audio. Amazing male Osprey Sky Dance and courtship calling right over the Backyard and low. While the male shows off his voice and stamina for over 10 minutes the female can be heard calling loudly from high in a long leaf pine tree below probably encouraging him on! Hopefully they will build a nest nearby in the coming weeks. Luckily I had just attached my new external microphone with wind screen - this was the perfect test!

Appearance:
The undersides of the toes on each foot are covered with short spines, which help them grasp slippery fish.
Habitat:
The osprey is smaller than the bald eagles that typically share the same habitats, but its five to six foot wingspan is impressive nonetheless. Adults are dark brown above with a white underside and head. Look for the distinctive dark line that extends behind the eye and the gull-like way the narrow wings are angled downward when the birds are in flight.
The osprey is found year-round in Florida both as a nesting species and as a spring and fall migrant passing between more northern areas and Central and South America. Ospreys in Florida did not suffer the serious pesticide-related population declines that occurred in other states in the 1950s and 1960s. Pesticides, shoreline development and declining water quality continue to threaten the abundance and availability of food and nest sites for ospreys.
Behavior:
Ospreys, also known as "fish hawks," are expert anglers that like to hover above the water, locate their prey and then swoop down for the capture with talons extended.
In Florida, ospreys commonly capture saltwater catfish, mullet, spotted trout, shad, crappie and sunfish from coastal habitats and freshwater lakes and rivers for their diet.
Ospreys build large stick nests located in the tops of large living or dead trees and on manmade structures such as utility poles, channel markers and nest platforms. Ospreys have adapted so well to artificial nest sites that the species now nests in areas (e.g. inner cities) once considered unsuitable. Nests are commonly reused for many years. Nesting begins from December (south Florida) to late February (north Florida). The incubation and nestling period extends into the summer months.
The osprey is listed as a Species of Special Concern only in Monroe County. Permits are required throughout the state to remove a nest for these wonderful raptors, however, and a replacement structure must be erected to mitigate the removal of the nest.
http://myfwc.com/wildlifehabitats/profiles/birds/raptors-and-vultures/osprey/

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Osprey Sky Dance And Mating Calls

Friday, April 8, 2016

Crested Carcara Courtship Display


Audubon's Crested Caracara throws its head back to the extreme in a courtship display - you can see he also make a loud call, but it is so windy it can't be heard. He has a tasty piece of carrion for a gift to the lucky lady (note the bands on both legs), but just as the stage is set for some quality time for this couple a Turkey Vulture arrives  - nothing like a vulture to ruin the ambiance!
Although a majestic member of the falcon family they live mostly off of carrion.
Crested Caracara's are one of the rarest of Florida birds and live year round mostly in central Florida. They are protected as a threatened species by the Federal Endangered Species Act.
 Life History
The diet of Audubon’s crest caracara primarily consists of carrion (dead animal carcass), amphibians, reptiles, mammals; eggs; and other birds.
Little is known about the reproduction of the caracara.  Eggs from caracaras in Florida have been found from September to April, with the breeding season seeming to peak from January to March.  Nests are constructed with sticks, dry weed stalks, and long and narrow segments of vine.  The average clutch size is two eggs, with juveniles reaching adult size at five weeks of age, and  fledging occurring at seven to eight weeks old . 
Habitat and Distribution

Audubon's crested caracara inhabits wet prairies with cabbage palms (Sabal palmetto).  It may also be found in wooded areas with saw palmetto (Serenoa repens), cypress (Taxodium spp), and scrub oaks (Quercus geminate, Q. minima, Q. pumila) (U.S. Fish & Wildlife Service, n.d.).  Caracaras will also inhabit pastures (J. Rodgers pers comm. 2011).  Audubon's crested caracara is found throughout south central Florida, and also occurs in Texas, Arkansas, Mexico, Cuba, and Panama .
Threats:
The main threat to the Audubon’s crested caracara is habitat loss.  The main cause of habitat loss includes modification for urban development and agriculture.  Due to its isolation and specific habitat dependence, an environmental catastrophe could cause a significant decline in the caracara’s population.  A disproportionate sex ratio could occur in an environmental catastrophe causing lower reproductive rates (U.S. Fish & Wildlife Service, n.d.).  Traffic mortality will continue to be a threat to the species as the population of Florida continues to increase and more roads are constructed.  Illegal take from trapping is also a threat to crested caracaras 
http://myfwc.com/wildlifehabitats/imp...

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Crested Carcara Courtship Display


Tuesday, March 22, 2016

Swallow Tailed Kite Hunting


Graceful Swallow Tailed Kite appears hovering and hunting over the Florida Backyard - called "the most beautiful bird of prey" and  “the coolest bird on the planet” it is unmistakable in flight. Exciting to see this bird hunting over the Backyard - a much rare sighting than an eagle - this is an amazing bird and brings to four the species of Hawks documented in the Backyard this winter. Early march they are beginning to arrive to mate in Florida - I can only dream they would choose to mate and nest in the tall pine scrub/wetlands behind the Backyard.

Our most beautiful bird of prey, striking in its shape, its pattern, and its extraordinarily graceful flight. Hanging motionless in the air, swooping and gliding, rolling upside down and then zooming high in the air with scarcely a motion of its wings, the Swallow-tailed Kite is a joy to watch. At one time it was common in summer over much of the southeast, but today it is found mostly in Florida and a few other areas of the deep south.
https://www.audubon.org/field-guide/b...
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Swallow Tailed Kite Hunting