▁per ch ▁among ▁fol i age . ▁Most ▁pre y ▁we igh s ▁less ▁than ▁ 1 0 0 g ▁and ▁sometimes ▁over ▁ 2 0 0 g . ▁It ▁for ages ▁by ▁short - st ay ▁per ch ▁hunting ▁from ▁a ▁conce aled ▁position ▁in ▁fol i age , ▁pun ctu ated ▁by ▁short ▁tree - to - tree , ▁often ▁und ulating ▁fl ights . ▁It ▁also ▁for ages ▁by ▁low ▁fast ▁flight , ▁sometimes ▁h edge ▁ho pping . ▁Pre y ▁is ▁seized ▁in ▁flight ▁by ▁a ▁direct ▁flying ▁attack ▁or ▁a ▁ste alth y ▁gli de . ▁ ▁Bre eding ▁ ▁The ▁lay ing ▁season ▁is ▁July ▁to ▁December . ▁P airs ▁nest ▁sol itar ily . ▁The ▁nest ▁is ▁a ▁platform ▁of ▁st icks ▁ 2 7 – 3 2   cm ▁across , ▁ 1 2 – 1 5   cm ▁deep , ▁l ined ▁with ▁green ▁leaves ▁around ▁ 4 - 3 9 m ▁above ▁ground ▁in ▁the ▁fork ▁of ▁a ▁living ▁tree . ▁The ▁cl utch ▁size ▁is ▁usually ▁three ▁or ▁four ▁eggs , ▁r anging ▁from ▁two ▁to ▁five . ▁Inc ub ation ▁takes ▁ 3 5 ▁days , ▁and ▁the ▁nest ing ▁period ▁is ▁about ▁ 2 8 – 3 3 ▁days . ▁The ▁period ▁of ▁dependence ▁after ▁fled ging ▁last s ▁up ▁to ▁ 6 ▁weeks , ▁after ▁which ▁young ▁dis per se . ▁Sex ual ▁m atur ity ▁is ▁reached ▁at ▁one ▁year , ▁with ▁birds ▁sometimes ▁bre eding ▁in ▁ju