Exact(22)
They have only three toes, lacking the hind toe (hallux).
The hind toe, when present, is usually elevated.
The hind toe is usually heavier- and longer-taloned than the others.
The feet bear a claw instead of a nail on the first hind toe.
The hind toe of storks and ibis is reduced and elevated, an adaptation for more walking and less perching.
The toes of herons are long and flexible, with just a hint of webbing for walking or standing on soft ground, the functional hind toe aiding in perching.
Similar(38)
They have thin, pointed bills, pointed wings, and elongated hind toes and claws.
The hind toes are long and partially webbed, with weakly curved 4 mm-long, nonretractable claws.
The legs are short and members of the genus Syrrhaptes have feathers growing on both the legs and toes and no hind toes, while members of the genus Pterocles have legs feathered just at the front, no feathers on the toes and rudimentary hind toes raised off the ground.
Posture modifications, such as widely spread hind toes, were previously reported in MTPT-treated mouse models of Parkinson's disease (Rozas et al., 1998).
For the footprint test, the fore-toes and the hind-toes were labelled in blue and red, respectively.
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