Q: My feeder drips only on hot afternoons. What's causing that?

A: Temperature expansion. The nectar heats up and expands. The fix is to not fill the reservoir completely — leave space for expansion — or to place the feeder in a shadier location.

Q: Can I use silicone sealant to repair a cracked feeder?

A: Use only food-safe, waterproof silicone sealant if you attempt this. However, for most cracked plastic feeders, replacement is safer and more reliable. Cracks tend to spread, and repaired surfaces can harbor bacteria.

Q: My feeder leaks only when I first fill it. Why?

A: This usually means the lid isn't sealed properly or the vacuum hasn't fully established. Make sure the feeder is upright when you fill it, screw the lid on tightly, then invert it slowly. A small amount of dripping right after inverting is normal — it should stop within a few seconds as the vacuum forms.

Q: Do saucer feeders really not leak?

A: They very rarely do. Because the nectar sits in a dish rather than being held up by vacuum pressure, there's no pressure to push it out through the ports. They're an excellent choice for anyone dealing with chronic leaking problems.

Q: Could a leaking feeder make hummingbirds sick?

A: Indirectly, yes. Leaked nectar pools on the ground where it can ferment and attract mold. It also draws bees and wasps that can sting hummingbirds. More directly, a feeder that's draining constantly may leave birds without nectar when they come to feed. Keep it sealed and fresh. —

Why Your Hummingbird Feeder Leaks (And How to Stop It) | NectarBloom™