A feeder that was busy all June goes quiet in July and the yard feels empty. Here is what is usually behind it, in roughly the order it tends to be true.
1. The nectar has gone off
This is the first thing to check and the most common answer by a distance. Sugar water ferments in warm weather, and hummingbirds will approach a feeder, hover, and leave without drinking. Cloudy nectar, strands in the liquid or black specks around the ports all mean the same thing. In hot weather clean and refill at least twice a week — every other day is better.
2. The feeder is dirty even though the nectar is fresh
Black mould sits inside the ports where you cannot see it from the kitchen window. Fresh nectar poured into a dirty feeder is contaminated within hours. Take it apart and scrub the ports, not just the reservoir.
3. It is nesting season
Females on eggs do not spend the day at a feeder. The yard goes quiet for a few weeks in early summer and then suddenly gets busier than before when juveniles start showing up. This is the happiest reason on the list and it needs no action from you.
4. Natural flowers are winning
A feeder competes with whatever is blooming. When the bee balm and the trumpet vine come in, your sugar water drops down the menu. It is not a rejection — flowers are better food. Keep the feeder clean and they will come back when the bloom passes.
5. One bird is running the place
Hummingbirds are territorial out of all proportion to their size. A single dominant male will sit on a nearby branch and drive off every other bird that approaches, which makes a feeder look abandoned when it is actually being guarded. The fix is more feeders, hung out of sight of one another — around a corner, on the other side of the house. A bird cannot defend what it cannot see.
6. Wasps, bees or ants have taken over
Hummingbirds will not fight insects for a feeding port. If you see wasps working the ports or a line of ants on the hanger, the birds have already written the feeder off. Ant moats and nectar guards solve this, and so does moving the feeder a few feet.
7. The feeder moved
Even a few feet can throw them for a day or two. If you have just relocated it, give it a week before concluding anything.
8. Something is hunting there
A cat sitting under the feeder, or a hawk working the yard, empties it fast. Hummingbirds are small enough to be prey and they are careful about it. Move the feeder near cover — a shrub or a low branch within a few feet gives them an escape route and makes the spot usable again.
9. Full afternoon sun
A feeder baking in direct sun spoils nectar in a day. If your busy feeder went quiet as summer got hotter, this and reason one are usually the same problem.
10. The ratio is wrong
One part white sugar to four parts water. Weaker than that and you are offering them less than the flowers next door. Nothing else belongs in the jar — see the nectar recipe.
11. They have actually left
At the end of the season the simplest answer is the right one. Adult males head south first, often as early as August, with females and juveniles behind them. If the date lines up, nothing is wrong with your feeder. Check arrival and departure dates for your state — and leave it up about two weeks after your last sighting, for the stragglers coming through from further north.
The order to work through it
- Dump the nectar and look at it. Cloudy or stringy? That was the answer.
- Take the feeder apart and scrub the ports.
- Refill with fresh 1:4, hang it out of the afternoon sun.
- Still nothing after a week? Add a second feeder somewhere the first one cannot be seen from.
- Check the calendar before you blame yourself.
Sources
- Smithsonian’s National Zoo and Conservation Biology Institute — nectar recipe and cleaning frequency
- National Audubon Society — seasonal presence and migration timing
Last reviewed: October 2026.