When will the
hummingbirds arrive?

Ruby-throated hummingbirds begin returning to Michigan in spring. Early sightings can occur during April, while many residents notice arrivals in late April or May. Northern Lower Michigan and the Upper Peninsula generally lag southern Michigan. These are broad timing patterns; individual years vary.

Put a clean feeder outside roughly ten days before your region’s early watch date. This tool gives a region-specific planning date, not a guarantee of when the first bird arrives. There is no need to wait for the first reported sighting.

The Saginaw Bay planning watch window on this site is approximately late April through mid-to-late May. An unusually early bird can precede that range; look at current weather and research-grade reports when spring arrives.

The Ruby-throated Hummingbird is Michigan’s only regularly occurring hummingbird. Other species appear very rarely, and a one-off sighting of another species does not reflect the usual Ruby-throated migration.

No. Mild weather and winds from the south can be useful clues for migration movement, but they cannot predict an individual bird’s arrival in a particular yard. The weather indicator is an editorial screening cue, not a calibrated probability.

Yes. Migrating hummingbirds may use feeders in fall. Keeping a feeder clean and available does not prevent hummingbirds from migrating; day length and other factors shape their departures. The map’s primary spring watch is not an autumn departure forecast.

Mix one part refined white table sugar with four parts water, allow it to cool, and never add red dye. Change nectar and thoroughly clean feeders every other day, or more frequently when needed, following Smithsonian National Zoo guidance.

The historical benchmark measures when public research-grade sightings were first submitted for that year and region. It is delayed by observer effort, identification and reporting. The earlier feeder-ready date intentionally remains a cautious spring planning guide, not an observation-derived arrival estimate.

No. Numbered markers are approximate regional forecast centers. Actual public community observations appear separately with dates and links when an observation feed is available. Lack of reports never means there are no hummingbirds.