It usually forages in trees but this is more subject to food availability than a genuine preference of this voracious and quite indiscriminate carnivore.
Because the cost of mistakes is low (low investment in spermatophores) and potential reward (location of receptive female) is high, indiscriminate behavior can become advantageous.
Apart from possible habitat destruction, it appears that indiscriminate use of pesticides has a strong effect on this species due to its insectivorous habits.
