it all depends how confident you are and what plane you have

myself, i have planes for all different occasions

for the still/calm days i have a Ripmax Bossanova which is built light, fast and agile but gets thrown around terribly in the wind

for the windier days i have a Mick reeves Gangster .60 with a super tiger .75 ringed engine, its built like a brick outhouse and is very fast, even survived a belly flop from about 40 feet after an engine failure (only suffered a broken prop) and because it is heavier and faster it cuts through the wind alot better and is less vulnerable.

birds are a good indication, if they are all in their roost then its not ideal flying conditions but if they are all out and about then it should be fine for you to fly in

however, if you feel confident flying in a hurricane then by all means see how you get on, if you dont want to fly in a breeze then dont risk it