Doesn't look like ostrich fern. Ostrich fern frond is narrow at the base, widest just below the top. Like an ostrich feather, you see. Your fern's frond gets narrower at the top. Might be lady fern, Athyrium filix-femina, might be hay scented fern, but there are still more possibilities. Pick one frond, flatten it out, send a picture of that. Can you get a closeup of the spore-bearing parts?

Looking at this again, New York fern is a good possibility. The blade is widest near the middle and tapers in both directions. Habit of growth is something to consider also. Ostrich fern fronds all originate from a single little woody nubbin. New York and hay scented ferns have a spreading underground rhizome, so on well established plants they make tangled masses of fronds which kind of pop up randomly. Lady fern is kind of intermediate, usually clump forming but sometimes spreading.