Costa's Hummingbird in August

August feels like summer but the year has turned. Southbound migration is quietly underway, many adults are molting into fresh plumage, and family groups are breaking up. Late nesters are still feeding young in the North while southern birds are already drifting toward wintering grounds.

For the Costa's Hummingbird specifically, August is a summer month of relative routine, with the species settled into its seasonal pattern across its range. Across the 5 states and provinces where Costa's hummingbirds occur, what the bird is doing this month depends heavily on latitude — the details below break it down by band.

Southern states

absent

Mid-latitudes

year-round resident

Northern states & Canada

absent

In August, Costa's hummingbirds are absent in the South, year-round resident across the mid-latitudes, and absent in the northern states and Canada. That north–south split is the defining feature of this month: where you live changes which version of this bird you're looking at.

Costa's hummingbirds are not nesting in August. The season runs February–May at mid-latitudes.

Outside the nesting season, Costa's hummingbirds put their energy into feeding and flocking rather than territory and young — which is exactly what makes them easier to watch and attract this month.

• Nectar and gnats

Nests in late winter in the Sonoran Desert and leaves the hottest areas by midsummer.

Molting birds look scruffy and often skulk — don't be surprised if familiar visitors briefly vanish. Keep water fresh in the heat.

Full Costa's Hummingbird diet guide → · Best feeder for Costa's hummingbirds →

Costa's hummingbirds are settled and predictable in August, which makes this a good month to learn the bird's routine — same feeders, same perches, same times of day.

The state guides below show exactly where in your region Costa's hummingbirds are expected this month and which native plants hold them in a yard.

ArizonaCaliforniaNevadaNew MexicoUtah