@Robert68 I live in a woodsy area of Southern Maine here in the US and have done this once and only once - though I am not sure why I haven't tried again! I put a mason jar with a cheesecloth over it on my front porch. What I captured overnight was awesome! It was a strange yeast - it fermented similar to a Hefeweizen strain at first - lots of banana/bubble gum notes but if left, it would continue fermenting down to very low levels - 1.002! Yet it tasted great! I made two batches of beer with it and could have made more but I bounce around alot with ideas etc.
I recommend trying to capture your own. They say Fall is a great time of year to do so. I did it in May/June (Spring) and was honestly super surprised by the results. I'm just getting back into brewing after a 6-8 month hiatus but I think I may try it again this fall - right on my front porch
Here's to hoping you come up with something worth drinking! Cheers!