I had the same thing happen to me involving a rabbit's foot fern. Although I enjoyed watching the parents raise the 3 little chicks, my fern suffered for it. What I did this year was to suspend sea shells above the hanging basket from the bracket with fishing line. They move and clatter in the breeze. My returning parents have had a look, but so far no nests. I do keep a few birdhouses along my fence as alternatives. It may be worth a try.

I'm new to house plants, but i've killed one birds nest fern before and the second is thriving (this is how we get to be good at caring for a particular kind of plant it seems you have to kill one and learn from your mistakes). What i've found is that it's easiest to water from UNDER the plant. What i mean is when the surface of the soil in the pot is dry (check it every other day folks you don't want it to get starved). Take it and set it in a shallow bowl of water mixed with the right amounts of liquid miracle grow houseplant food. Let it soak maybe 15-30minutes or until either all the water is absorbed or the surface of the soil is moist. If the soil is dry on the top and the water is all absorbed add more and check every so often. when the soil is thoroughly moist, remove the plant and drain for a few minutes (i stick it in the kitchen sink) and then return it to it's normal home. My 4 inch plastic pots sit inside glazed ceramic containers to dress them up and keep moisture from getting on the windowsill. Watering from underneath avoids crown rot (which i understand to be a problem common to this plant), and it assures even moisture in the soil, i've noted it's hard to get the soil fully watered when watering from 'overhead' esp since i have a 4inch pot for my birdsnest fern. Also i noticed in TOO HIGH lighting conditions the leaves get really really pale almost white even after just one day. When not watered enough the leaves get really dry and start getting brown spots at the edges. With crown rot i started loosing leaves rapidly and no new leaves would spring up out of the crown. I can tell my plant is healthy the way i've been caring for it now (after a few months after bringing it home from the nursery) the fronds have gotten darker (they started almost yellow and are now darker)and i'm getting new buds poking through the crown. My birdsnest fern is in a west facing window with a 6 foot porch overhang. It gets gentle light until the end of the day just before the sun sinks over the horizon. It doesn't seem to prefer bright light, nice 'understory' kind of filtered light seems to suit it well. (like what you'd get under a tree) I've started watering all my houseplants from underneath (with exception of my orchid which gets misted). The african violets and my birdsnest ferns love being watered this way from my experience. I've only had these about 6 months but for now it seems everything's going quite well.

Need more info.... What did you do after it was knocked over? Is the plant still connected to the root mass? What happened with the soil....how is it now? Have you watered? Is it wet, dry, moist now? Did you change it's location? I will say this- BNF are sensitive to touch. The leaves will bruise if you brush up against it. While it doesn't require the humidity of some of it's cousins, it does appreciate it. They do best with moderate to bright light. They don't like it when you get water in their crowns! Rot, rot, rot and more rot. LOL

I had almost the exact same thing happen. I had a bird's nest fern for a long, long time. It was out-growing the pot, It did well in winters underneath the oak so I thought, "Why not just plant it under the oak?" I did so and mine started to follow the same path as some of those discussed above. After watching it get worse and worse, I finally lifted it and replanted it into a new, larger pot. Almost immediately it started to get better. So ever since, it lives in a glazed pot under the oak. It sure didn't like being in the ground - or at least, my ground. Carol in Jacksonville