Halcón peregrino (Peregrine Falcon) Falco peregrinus

Pensar que hace mas de 8 años que estoy fotografiando aves y ayer por la mañana en el Arroyo Itá tuve la suerte de poder ver a un Halcón peregrino perchando en el árbol seco de la vereda del costado de la reserva. Con las aves no hay nada escrito, solo es cuestión de conicidir […]

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Big city living doesn’t stop peregrine falcons from mating for life

As humans encroach more and more on their habitat, some peregrine falcons have become city-dwellers: at least 25 pairs now nest on man-made structures like skyscrapers and bridges in Chicago, for instance. In their natural habitat, where they build their nests on isolated cliff ledges, peregrine falcons (Falco peregrinus) mate for life. But like any […]

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Scientists Finally Find Elusive Hormone Leptin in Birds

Scientists Finally Find Elusive Hormone Leptin in Birds

Researchers have found leptin – a hormone that regulates body fat storage, metabolism and appetite – in the Peregrine falcon (Falco peregrinus), the mallard (Anas platyrhynchos) and the zebra finch (Taeniopygia guttata). How does the Arctic tern fly more than 70,000 km in its annual roundtrip North Pole-to-South Pole migration? How does the Emperor penguin […]

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Peregrine Falcon

I saw this falcon at the Edwin B. Forsythe National Wildlife Refuge in Oceanville, New Jersey, on Christmas day, 2013. I would not have noticed it, but an adult peregrine circled around me. I looked at the ground where the adult had swooped lowest and I saw the young peregrine on the ground. I took […]

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Peregrine Falcon – Falco peregrinus

Wanderfalken, Falco peregrinus bekamen ihren Namen aus dem lateinischen Wort “Peregrinus Wanderer oder Pilger” was treffend auf diesen Raubvogel passt. Die Falken sind fast immer unterwegs und sind in ganz Nordamerika und rund um den Globus ausser in der Antarktik anzutreffen. Das Vorkommen war in den 50ger Jahren durch DDT- Vergiftung extrem gefaehrded. Inzwischen haben […]

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Birds of Delevan National Wildlife Refuge

According to the Sacramento National Wildlife Refuge Complex website, Delevan National Wildlife Refuge comprises 5,797 acres, including seasonal marsh, permanent ponds, and uplands. It is predominately a hunting refuge for waterfowl and pheasant. Wildlife observation takes place from the county roads, on the perimeter of the refuge. There is one notable exception to this, the […]

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