G call(s) female at 0639 hr, narration before every stop, G call(s) female 0644am, flock near nest, G call(s) male at 0701 hr, G call(s) male at 0718 hr, G call(s) male at 0740 hr, G call(s) male in response to female, G call(s) male as female approached nest, G call(s) male copulation at 0807 hr, G call(s) greeting, male approach female on nest