Aplomado Falcon vs Australian Hobby

Aplomado Falcon

Falco femoralis

Large336 gGrassland

The aplomado falcon is very slender, long-winged, and long-tailed, the size of a small peregrine falcon (F. peregrinus), at 30–40 cm (12–16 in) long and with an average wingspan of about 90 cm (35 in), but only half the weight, at about 208–305 g (7.3–10.8 oz) in males and 270–460 g (9.5–16.2 oz) in females. In adult birds, the upperparts are dark blue-grey, as is much of the head, with the usual falcon "moustache" contrasting sharply with the white throat and eyestripe.

ID text from Wikipedia, CC BY-SA 4.0

Photo: Hugo Hulsberg · CC0

Australian Hobby

Falco longipennis

Medium250 gForest

Smaller than other falcons, the Australian hobby is relatively slender and long winged. Its plumage varies in colour depending on sex, age and environment with a darker form in humid areas and a lighter form in drier environments. Generally the hobby displays a black cap and mask with a whitish forehead and half-collar. Underparts can be blue-grey or rufous and streaked darker. The cere in adults is a pale yellowish grey, the eye ring is pale blue, the eyes are brown and the feet are dull yellow. Females are larger in size between 34 and 35. Voice: Research undertaken comparing the vocalisations of Australian falcons, found that two structurally distinct calls were emitted when a male hobby was restrained. This included a wide band harmonic vocalisation and a trill-type vocalisation.

ID text from Wikipedia, CC BY-SA 4.0

Photo: patrickkavanagh · CC BY 2.0

Photos and recordings are credited to their authors under the licence shown. Full profiles: Aplomado Falcon and Australian Hobby.