Avian Feet

[ExFmem]

Syndactyly – two or more toes (usually III and IV) are fused to varying degrees.
Syndactyly is common among kingfishers, hornbills and beeeaters (Coraciiformes) and there are many intermediate examples of birds with partly fused toes in this group. Extreme syndactyly occurs in the wood-hoopoes and hornbills.

[ExFmem]

Pamprodactyly – is found among some mousebirds and swifts, and is characterised by all four digits being directed forwards, enabling these species to hang their weight on all four toes and even feed upside-down.





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I don’t have any Trogons

[ExFmem]

(If you do a topic on chicken legs, I can take a selfie and contribute to that also )

[Alf]

Ex

[Flutterby]

[Lisbeth]

Ex! That's the way it should be done (Not talking about chicken legs here ) Will edit later

[Richprins]

Wow, Ex!

(I love chicken legs... )

[Klipspringer]

(Cropped the pics quite a bit to try to get a closer look at the feet.)

Anisodactyly – has three digits (numbered II, III and IV) orientated forwards and digit I (the ‘big toe’, or hallux) pointing backwards.

(Note: rollers are listed on the chart under Syndactyl, but they are described in the written description of Syndactyly as having “true anisodactyl feet.”)

The Rollers are syndactyl, but the the toes are less fused than in other Coraciformes and look anisodactyl like in your photo.

[Klipspringer]

Anyone with an owl, black-winged kite or osprey?

They can rotate the toe and switch toe arangements

[Lisbeth]