having toes arranged so that two point forward and two point backward; cf. zygodactylous adj. at zygodactyl, adj. n.derivatives.

Having the toes ‘yoked’ or arranged in pairs, i.e. two before and two behind, as the feet of a scansorial bird, or the bird itself; yoke-toed.

unequal-toed (said of those insessorial birds called by Temminck Anisodactyles).

(See quots.)

Having short toes; esp. in short-toed lark, any of various larks of the genera Calandrella and Spizocorys, which comprise small gregarious birds…

having the toes, or one of them, irregular or abnormal, as certain families of birds (Ogilvie, 1882).

(of a bird) having the toes in pairs, two in front and two behind; zygodactylous.

having the tendons of the deep flexors of the toes united before separating to each of the four digits.

Of a bird's foot: having all the toes pointing forward.

Ornithology. Of a bird: having feet similar to those of pigeons, with the hind toe inserted at the same level as the other toes. Cf. peristeropod…

= pamprodactylous, adj.

bad form of sympelmous (see sym-, prefix).