, ▁with ▁a ▁dark er ▁cap ▁and ▁c inn am on ▁fe athers ▁along ▁the ▁side ▁of ▁the ▁head ▁and ▁neck . ▁The ▁bel ly ▁is ▁white ▁with ▁dark ▁mark ings ▁and ▁re dd ish ▁brown ▁color ation ▁on ▁it . ▁The ▁dark ▁version ▁is ▁basically ▁all ▁black ▁with ▁wh it ish ▁ed ging ▁on ▁the ▁fe athers . ▁The ▁call ▁of ▁the ▁r uf ous - ta iled ▁ha w k ▁sounds ▁like ▁ke e - ahr r . ▁ ▁Hab itat ▁ ▁The ▁r uf ous - ta iled ▁ha w k ▁has ▁been ▁sp otted ▁living ▁in ▁a ▁number ▁of ▁different ▁habitat ▁types , ▁including ▁ever green ▁be ech ▁forest , ▁m ature ▁forest ▁and ▁new ▁growth ▁forest ▁that ▁have ▁been ▁burn ed ▁over , ▁and ▁finally ▁in ▁open ▁country . ▁The ▁best ▁theory ▁for ▁their ▁ideal ▁habitat ▁was ▁developed ▁by ▁Fig u ero a ▁et ▁al . ▁( 2 0 0 0 ), ▁Tre jo ▁et ▁al . ▁( 2 0 0 6 ), ▁and ▁R ivas ▁et ▁al . ▁( 2 0 0 9 ), ▁who ▁all ▁suggested ▁that ▁r uf ous - ta iled ▁ha w ks ' ▁ideal ▁habitat ▁is ▁somewhere ▁with ▁high ▁trees ▁near ▁open ▁areas ▁that ▁are ▁good ▁for ▁hunting ▁for ▁pre y . ▁So ▁far , ▁there ▁have ▁been ▁no ▁reports ▁of ▁the ▁r uf ous - ta iled ▁ha w k ▁living ▁in ▁human ▁areas ▁like ▁cities ▁or ▁abandoned ▁buildings . ▁ ▁Fe eding ▁ ▁The ▁r uf ous - ta iled