Tricky birds of central Victoria - raptors · What is a raptor? •Birds of prey, also known as...
Transcript of Tricky birds of central Victoria - raptors · What is a raptor? •Birds of prey, also known as...
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Connecting Country24th August 2020
Geoff Park
Tricky birds of central Victoria - raptors
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It’s a hawk!
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What is a raptor?
• Birds of prey, also known as raptors, are birds that hunt or feed on other animals
• The term "raptor" is derived from the Latin word rapere (meaning to seize or take by force)
• Raptors have keen vision that allows them to detect prey during flight and powerful talons and beaks. In most cases, the females are larger than the males.
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In ornithology, the term raptor, refers to the following families:
Diurnal birds of prey
• Accipitridae: hawks, eagles, buzzards, harriers, kites and Old World vultures
• Pandionidae: the osprey• Sagittariidae: the secretary bird• Falconidae: falcons and caracaras
Nocturnal birds of prey
• Strigidae: typical owls• Tytonidae: barn owls
Because of their predatory nature they face distinct conservation concerns.
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Accipitridae – kites, eagles, harriers and goshawks
• Black-shouldered Kite• Square-tailed Kite• White-bellied Sea-Eagle• Whistling Kite• Black Kite• Brown Goshawk• Collared Sparrowhawk• Spotted Harrier• Swamp Harrier• Wedge-tailed Eagle• Little Eagle
Falconidae - falcons
• Nankeen Kestrel• Brown Falcon• Australian Hobby• Black Falcon• Peregrine Falcon
16 of the 24 Australian mainland raptors can be found regularly in
central Victoria
… with two others possible, the Letter-winged Kite and Grey
Goshawk
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(Australian Birds of Prey in Flight Photographic Guide By: Richard Seaton, Mat Gilfedder and Stephen Debus)
Identifying raptors … my top three tips
1. Acquire a ‘top notch’ field guide
2. Spend time in the field
3. Learn the ‘spotting characteristics’ for your target species
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These are not raptors … nor are they owls!
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Raptor ID tips
In flight
• Overall body shape• Shape of wings and tail• Flight style
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Raptor ID tips
When perched• Plumage colours, patterns, markings• Profile• Special features
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Whistling Kite• Underwing pattern• ‘Fingered’ wings• Long, rounded tail
Black Kite• Forked tail• Slim body• Lazy, slow flight• Often in small flocks
Whistling Kite (juvenile)• Spotted upper-parts
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Little Eagle• Small, compact eagle• Distinctive
underwing pattern• Short, squarish tail
Wedge-tailed Eagle• It’s massive!• Long-wedge-shaped tail• Plumage colour varies with
age
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Brown Goshawk• Long-rounded tail• ‘Beetle-brow’• Robust legs
Female goshawk > male goshawk ~ Female sparrowhawk > male
sparrowhawk
Juveniles of both are very different to adults
Collared Sparrowhawk• Long, square tail• Elongated middle toe• Brow-ridges not as
prominent
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Nankeen Kestrel• Rich-rufous upperparts• Sub-terminal tail band• Typical falcon profile
Brown Falcon• Distinctive malar stripe • Wing and tail feathers usually
strongly barred• Lumbering flight
Black Falcon• Small-headed … may have semblance
of falcon ‘hood’• Tail projects beyond folded wings• Swift, powerful flight – often low level
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Habitat
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Raptor ID dilemmas #1 Brown Falcon v. Black Falcon
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Raptor ID dilemmas #1 Brown Falcon v. Black Falcon
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Raptor ID dilemmas #2 Brown Goshawk v. Collared Sparrowhawk
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Raptor ID dilemmas #2 Brown Goshawk v. Collared Sparrowhawk
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Raptor ID dilemmas #3 Whistling Kite v. Little Eagle
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Raptor ID dilemmas #3 Whistling Kite v. Little Eagle
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Raptor ID dilemmas #4 Spotted Harrier v. Swamp Harrier
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Black-shouldered Kite
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Square-tailed Kites , Newstead January 2012Photograph by Patrick Kavanagh
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White-bellied Sea-eagle - immature
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Thanks for listening!