There's a couple good birding spots -- burrowing owls have burrows in a couple different neightborhoods, there is (or has been) a pair of bald eagles nesting there pretty regularly, and Tigertail Beach can be really good for shorebirds, herons & egrets, gulls, and pelicans. I also got my lifer swallow-tailed kite there. The nearby Marsh Trail that's part of the Ten Thousand Island NWR is wild in the evening since it's a big rookery, so there will be hundreds of herons, egrets, ibis, and other birds flying in to roost for the night.
Native Floridian here who’s never been to Marco Island but now I have a reason to!
There's a couple good birding spots -- burrowing owls have burrows in a couple different neightborhoods, there is (or has been) a pair of bald eagles nesting there pretty regularly, and Tigertail Beach can be really good for shorebirds, herons & egrets, gulls, and pelicans. I also got my lifer swallow-tailed kite there. The nearby Marsh Trail that's part of the Ten Thousand Island NWR is wild in the evening since it's a big rookery, so there will be hundreds of herons, egrets, ibis, and other birds flying in to roost for the night.