BDB2874
תַּחְמָס noun [masculine] name of male ostrich, according to Boii.830 Thes (Thes derives from violence of this bird, compare Arabic [untranscribed source text 1809] violence, also ostrich; other conjectures are: owl ᵐ5 ᵑ9 ; swallow, Saad : see also Kn in Di) — mentioned as unclean Lev 11:16 ( P ) Deut 14:15 .