Based on 2,794 research-grade iNaturalist observations in Maryland, Ruby-throated Hummingbird is most often recorded in August; in Maryland it behaves like a summer visitor / breeder. It ranks #44 among birds recorded in the state in our data.
Archilochus colubris
Ruby-throated Hummingbird in Maryland by month
Bars show research-grade observations per month. They mix true seasonality with how often people are outdoors, so treat small numbers with caution.
Also seen in Maryland in August
Places to look in Maryland
State ParkWashington Monument State Park
State ParkPatapsco Valley State Park
State ParkSeneca Creek State Park
State ParkCalvert Cliffs State Park
State ParkSusquehanna State Park
State ParkGambrill State Park
FAQ
When does Ruby-throated Hummingbird appear in Maryland?
Mainly June–September, with the most records in August.
How common is Ruby-throated Hummingbird in Maryland?
It ranks #44 by number of iNaturalist observations among birds in Maryland (2,794 records in our sample).