"I am not much of a fisherman"

Me neither. Don't really know much about fishing. But do enjoy a bit of it in the North.

I visited the NT and Northern WA in 1983 in May and the barramundi fishing was easy. Probably not as easy at other times of the year.

Interesting that magpie geese don't get as far South as the Katherine area.

I've seen them in untold thousands, where I couldn't shoot them, or when I could, none or just a few. Got a couple of shots off twice on some geese at Harrisons Dam a few years ago on the two flights only which came over.

Mostly it has been wrong or no season or wrong place at the right time.