A top-fill hummingbird feeder is provided having anectar container removably coupled to a feeding basin, thenectar container including a top opening closed by a cap.The cap has a sealing member configured to have aninterference press fit with the top opening of the nectarcontainer. The sealing member includes at least one void toallow air passage so that liquid can flow from the nectarcontainer into the feeding basin when the feeder is in use.