Asplenium nidus looks nothing like the ferns most people picture. Instead of finely divided fronds it has broad, solid, glossy leaves that unfurl from a central rosette, giving it the nest shape in the name.
It is an epiphyte, growing in the crooks of trees rather than in soil.
What every Bird's Nest Fern wants
Medium indirect light. Direct sun scorches the fronds badly.
Soil kept lightly moist, and humidity around 50%, which is achievable in a normal room. This is what makes it much easier than a Boston Fern.
Do not water into the nest
Water the soil around the edge of the pot, not the centre of the rosette. Water sitting in the crown causes it to rot, which is the main way these are killed.
Handle new fronds carefully as they unfurl. Bruised ones stay marked for the life of the leaf.
Bird's Nest Ferns are non-toxic to cats and dogs.