When should I put out hummingbird feeders in Wyoming?

Around mid April, about two weeks before the first hummingbirds typically arrive (early May).

When should I take down hummingbird feeders in Wyoming?

Around late September, about two weeks after the last regular reports (the second week of September).

Where do these dates come from?

They come from the share of complete checklists in Wyoming that report each species, week by week, 2016-2025, not from anecdotal first sightings.

Feeder timing · Wyoming

When to Put Out (and Take Down) Hummingbird Feeders in Wyoming

In Wyoming, put hummingbird feeders out around mid April and take them down around late September. The first arrivals typically show up in early May and most are gone by the second week of September.

Put feeders outApr 15-21

First arrivalsMay 1-7

Last seenSep 8-14

Take feeders downSep 22-30

Rule used: feeders go out two weeks before the typical first-arrival week and come down two weeks after the last week birds are still reported. First arrival is the first week reports reach 10% of the species' usual in-season rate; last seen is the last such week. A few early or late birds can fall outside.

By species

Species	Pattern	First arrivals	Peak	Most gone by	Feeder up	Feeder down
Broad-tailed Hummingbird	Summer visitor	May 1-7	Jun 8-14	Aug 22-31	Apr 15-21	Sep 22-30
Rufous Hummingbird	Passes through	Jun 22-30	Aug 1-7	Aug 22-31	Jun 8-14	Sep 15-21
Calliope Hummingbird	Summer visitor	May 15-21	Jun 8-14	Aug 15-21	May 1-7	Sep 8-14
Black-chinned Hummingbird	Summer visitor	May 15-21	Jun 8-14	Aug 22-31	May 1-7	Sep 8-14

Nectar feeders: four parts water to one part plain white sugar, no dye, changed every few days in warm weather.

Common questions

When should I put out hummingbird feeders in Wyoming?: Around mid April, about two weeks before the first hummingbirds typically arrive (early May).
When should I take down hummingbird feeders in Wyoming?: Around late September, about two weeks after the last regular reports (the second week of September).
Where do these dates come from?: They come from the share of complete checklists in Wyoming that report each species, week by week, 2016-2025, not from anecdotal first sightings.