#micrastur

[herpsandbirds]

Collared Forest Falcon (Micrastur semitorquatus), family Falconidae. order Falconiformes, Costa Rica

photograph by Alexander Alvarado

[alonglistofbirds]

[2841/11080] Cryptic forest falcon - Micrastur mintoni

Order: Falconiformes (falcons and caracaras) Family: Falconidae Subfamily: Herpetotherinae (forest falcons)

Photo credit: Mats Hildeman via Macaulay Library

[birdstudies]

October 16, 2024 - Collared Forest-Falcon (Micrastur semitorquatus) Found from central Mexico to southern Brazil and northern Argentina, these falcons live in forests and mangroves. They eat birds, mammals, reptiles, amphibians, and some invertebrates, probably finding their prey by hearing and often running it down on the ground or hunting from perches. Nesting in cavities in large trees, females incubate clutches of two or three eggs while males bring them food.

[na-bird-of-the-day]

BOTD: Collared Forest-Falcon

Photo: Dario Taraborelli

"Like the Harpy Eagle, the Collared Forest-Falcon is adapted for ambush hunting, with short, wide wings and a long tail that allow for agile maneuvers through thick undergrowth. It hunts by sitting quietly on a concealed perch until it hears prey, then pounces down on it. It also pursues prey on foot along large branches or on the ground. The Collared Forest-Falcon may even be seen following army ant swarms to capture prey flushed by the ants."

- American Bird Conservancy

[gergarnero]

HALCÓN DEL BOSQUE CUELLIROJO

MICRASTUR RUFICOLLIS MICRASTUR RUFICOLLIS LONGITUD: 33 A 38 CENTÍMETROS. PESO: 150 – 225 GRAMOS. PLUMAJE: IGUAL PARA AMBOS SEXOS. MIGRACIÓN: NO MIGRATORIO. ESTADO: COMÚN A NIVEL LOCAL. UBICACIÓN: SUR DE MÉXICO A NORTE DE SUDÁMERICA. AL COMPARARLO CON OTROS HALCONES, EL HALCÓN CUELLIROJO O PALOMERO TIENE LAS ALAS REDONDEADAS Y RELATIVAMENTE CORTAS, ESTRUCTURA QUE LE AYUDA A MANIOBRAR CUANDO CAZA…

[snailkites]

Collared Forest-Falcon (Micrastur semitorquatus)

This October I will post ink-drawn birds, primarily themed around my Costa Rica trip, with no commitment to follow a theme or post every day.

Reference: ML611756930

[autistrix]

[https://www.inaturalist.org/observations/109369564] Barred Forest-Falcon || Micrastur ruficollis Observed in Mexico Near Threatened in location of observation

[new-dinosaurs]

Thegornis sosae Agnolín, 2023 (new species)

(Type tarsometatarsus [fused ankle and foot bones] of Thegornis sosae [scale bar = 1 cm], from Agnolín, 2023)

Meaning of name: sosae = for Haydée Mercedes Sosa [Argentinian singer]

Age: Probably Miocene (Tortonian–Messinian)

Where found: Probably the Andalhualá Formation, Catamarca, Argentina

How much is known: A partial left tarsometatarsus (fused ankle and foot bones).

Notes: T. sosae was a falcon, closely related to the extant laughing falcon (Herpetotheres cachinnans) and forest falcons (genus Micrastur) of the tropical Americas. Three other species of Thegornis had previously been named, the older T. musculosus, T. debilis, and T. spivacowi from the early–middle Miocene of Argentina. T. debilis was about the same size as the laughing falcon, whereas T. musculosus, T. spivacowi, and T. sosae were slightly larger (though it is possible that T. debilis may represent a male individual of T. musculosus, given that females are often substantially larger than males in extant falcons).

Few details about the collection of the type specimen of T. sosae were recorded, hence the uncertainty regarding its precise locality. The specimen had previously been identified as a hawk of the genus Geranoaetus in 2006, but more detailed study has led to its reinterpretation as a new species of falcon.

Reference: Agnolín, F.L. 2023. A new species of the falcon genus Thegornis (Aves) from the Miocene of northwestern Argentina. Historia Natural 13: 15–24.

[hello-birdies]

Micrastur ruficollis by Christian Nunes

[stranger-nature]

Birdtober 2022

Day 13: Forest

Species: Collared Forest-Falcon (Micrastur semitorquatus)

The Collared Forest-Falcon is the largest member of its genus. It occurs in a wide variety of tropical forested habitats from central Mexico to southern Brazil.

Source: Birds of the World

[ooksaidthelibrarian]

n150_w1150 by Biodiversity Heritage Library Via Flickr: Biologia Centrali-Americana :. [London :Published for the editors by R. H. Porter],1879-1915. biodiversitylibrary.org/page/572790

[respectanimalrights]

Credit photo ✏ @seanmchughwildlife ⬅ Follow Lined Forest-Falcon (Micrastur gilvicollis) was a pleasant surprise to find in the mist nets. This individual was a juvenile according to our ornithologist, the bare patch on its face will grow darker orange with age and the eyes will continue to lighten. As the name would suggest this species is a true falcon (Falconidae) that lives throughout the Amazon basin and Guyana shield. The Lined Forest-Falcon prefers mature lowland tropical forest, this particular study site was exactly that, with tall mature trees which provided ample space beneath the canopy for arial hunting. Little is known about this falcons natural history but we suspected it was attempting to snatch one of the already captured birds in the mist net. . . . . . . . #birds #bird #birdsofprey #birding #birdingphotography #birdingdaily #falcon #falcons #birdsofinstagram #your_best_birds #birdy #operationwallacea #iwokrama #guyana #southamerica #talons #speed #research #conservation #wildlifephotography #wild #nature #sharp #naturephotography #ornithology #orange #fast #predator #rainforest #science https://www.instagram.com/p/B3S760WIJ2p/?igshid=dfvwplg57zau

[alonglistofbirds]

[2546/11080] Collared forest falcon - Micrastur semitorquatus

Order: Falconiformes (falcons and caracaras) Family: Falconidae Subfamily: Herpetotherinae (forest falcons)

Photo credit: Fernando Burgalin Sequeria via Macaulay Library

[artscult-com]

Micrastur semitorquatus 1902 - high resolution image from old book.

[artscult]

micrastur mirandollii - high resolution image from old book.

[alonglistofbirds]

[1858/10977] Buckley's forest falcon - Micrastur buckleyi

Order: Falconiformes (falcons and caracaras) Family: Falconidae Subfamily: Herpetotherinae (forest falcons)

Photo credit: Robert McNab via Macaulay Library