A breeding male Bay-breasted Warbler at Susquehanna SP, Harford Co., Maryland (5/18/2013).

Photo by Mike Burchett MBP List

A breeding male Bay-breasted Warbler at Susquehanna SP, Harford Co., Maryland (5/18/2013).

Photo by Mike Burchett MBP List

A Bay-breasted Warbler in Charles Co., Maryland (5/20/2016).

View Record Details Photo by Mark Johnson MBP List

Bay-breasted Warbler in Baltimore Co., Maryland (5/18/2020). (c) Frode Jacobsen, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 341934 - Psn: 22)

Bay-breasted Warbler in Baltimore Co., Maryland (5/18/2020). (c) Frode Jacobsen, some rights reserved (CC BY-NC).

View Record Details Photo by Frode Jacobsen MBP List

A Bay-breasted Warbler in Harford Co., Maryland (9/12/2017).

View Record Details Photo by Mark Johnson MBP List

A Bay-breasted Warbler in Garrett Co., Maryland (9/27/2009).

Photo by Mikey Lutmerding MBP List

A Bay-breasted Warbler in Queen Anne's Co., Maryland (9/20/2017).

View Record Details Photo by Daniel Irons MBP List

Bay-breasted Warbler in Harford Co., Maryland (9/13/2014).

Photo by Matthew Addicks MBP List

A Bay-breasted Warbler in Harford Co., Maryland (9/3/2017).

View Record Details Photo by Mary Sweet MBP List

Bay-breasted Warbler in Calvert Co., Maryland (5/13/2022). (c) rosalie-rick, all rights reserved. (Photo ID: 568243 - Psn: 66)

View Record Details Photo by rosalie-rick via iNaturalist MBP List

Bay-breasted Warbler in Montgomery Co., Maryland (9/7/2013). (c) Stephen John Davies, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 376828 - Psn: 76)

Bay-breasted Warbler in Montgomery Co., Maryland (9/7/2013). (c) Stephen John Davies, some rights reserved (CC BY-NC).

View Record Details Photo by Stephen John Davies via iNaturalist MBP List

Bay-breasted Warbler in Montgomery Co., Maryland (9/11/2021). (c) Stephen John Davies, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 563598 - Psn: 78)

Bay-breasted Warbler in Montgomery Co., Maryland (9/11/2021). (c) Stephen John Davies, some rights reserved (CC BY-NC).

View Record Details Photo by Stephen John Davies via iNaturalist MBP List

Bay-breasted Warbler in Montgomery Co., Maryland (9/11/2021). (c) Stephen John Davies, some rights reserved (CC BY-NC).

View Record Details Photo by Stephen John Davies via iNaturalist MBP List

Bay-breasted Warbler in Montgomery Co., Maryland (10/3/2023). (c) Stephen John Davies, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 905316 - Psn: 145)

Bay-breasted Warbler in Montgomery Co., Maryland (10/3/2023). (c) Stephen John Davies, some rights reserved (CC BY-NC).

View Record Details Photo by Stephen John Davies via iNaturalist MBP List

Bay-breasted Warbler in Montgomery Co., Maryland (10/3/2023). (c) Stephen John Davies, some rights reserved (CC BY-NC).

View Record Details Photo by Stephen John Davies via iNaturalist MBP List

Bay-breasted Warbler in Montgomery Co., Maryland (9/24/2022). (c) Stephen John Davies, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 652333 - Psn: 166)

Bay-breasted Warbler in Montgomery Co., Maryland (9/24/2022). (c) Stephen John Davies, some rights reserved (CC BY-NC).

View Record Details Photo by Stephen John Davies via iNaturalist MBP List

Bay-breasted Warbler in Montgomery Co., Maryland (10/3/2023). (c) Stephen John Davies, some rights reserved (CC BY-NC).

View Record Details Photo by Stephen John Davies via iNaturalist MBP List

Bay-breasted Warbler in Montgomery Co., Maryland (9/24/2022). (c) Stephen John Davies, some rights reserved (CC BY-NC).

View Record Details Photo by Stephen John Davies via iNaturalist MBP List

Bay-breasted Warbler in Montgomery Co., Maryland (9/24/2022). (c) Stephen John Davies, some rights reserved (CC BY-NC).

View Record Details Photo by Stephen John Davies via iNaturalist MBP List

Bay-breasted Warbler in Cecil Co., Maryland (9/8/2022). (c) Jonathan Irons, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 692355 - Psn: 175)

Bay-breasted Warbler in Cecil Co., Maryland (9/8/2022). (c) Jonathan Irons, some rights reserved (CC BY-NC).

View Record Details Photo by Jonathan Irons MBP List

Bay-breasted Warbler in Cecil Co., Maryland (8/25/2022). (c) Jonathan Irons, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 749022 - Psn: 175)

Bay-breasted Warbler in Cecil Co., Maryland (8/25/2022). (c) Jonathan Irons, some rights reserved (CC BY-NC).

View Record Details Photo by Jonathan Irons MBP List

Bay-breasted Warbler in Montgomery Co., Maryland (9/24/2022). (c) Stephen John Davies, some rights reserved (CC BY-NC).

View Record Details Photo by Stephen John Davies via iNaturalist MBP List

Bay-breasted Warbler in Montgomery Co., Maryland (10/3/2023). (c) Stephen John Davies, some rights reserved (CC BY-NC).

View Record Details Photo by Stephen John Davies via iNaturalist MBP List

Bay-breasted Warbler in Montgomery Co., Maryland (9/28/2023). (c) Stephen John Davies, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 940868 - Psn: 178)

Bay-breasted Warbler in Montgomery Co., Maryland (9/28/2023). (c) Stephen John Davies, some rights reserved (CC BY-NC).

View Record Details Photo by Stephen John Davies via iNaturalist MBP List

Bay-breasted Warbler in Dorchester Co., Maryland (10/1/2023). (c) Jonathan Irons, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 921534 - Psn: 188)

Bay-breasted Warbler in Dorchester Co., Maryland (10/1/2023). (c) Jonathan Irons, some rights reserved (CC BY-NC).

View Record Details Photo by Jonathan Irons via iNaturalist MBP List

Bay-breasted Warbler in Queen Anne's Co., Maryland (9/23/2020). (c) Jonathan Irons, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 320144 - Psn: 211)

Bay-breasted Warbler in Queen Anne's Co., Maryland (9/23/2020). (c) Jonathan Irons, some rights reserved (CC BY-NC).

View Record Details Photo by Jonathan Irons MBP List

Bay-breasted Warbler being banded in Garrett Co., Maryland (Date obscured). (c) Alina Martin, all rights reserved. (Photo ID: 668215 - Psn: 255)

View Record Details Photo by Alina Martin via iNaturalist MBP List

Map Snapshot

280 Records

GA AL WA FR CL MO HO BA BC HA CE PG AA CV CH SM KE QA CN TA DO WI SO WO

Status

This species is an uncommon passage migrant in Maryland as it migrates between its breeding grounds in the Boreal forest (fir/spruce habitat) and wintering grounds in the Caribbean and Central and South America. Its numbers fluctuate significantly based on outbreaks of the Spruce Budworm (moth larvae). In fall migration, adults are more likely to migrate west of the Appalachians. First-year birds are more common east of the Appalachians and along the coast. So it isn't just our imagination that this species is easier to see in Maryland in fall!

Seasonality Summary

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Resources

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Citations

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Use of media featured on Maryland Biodiversity Project is only permitted with express permission of the photographer.

A breeding male Bay-breasted Warbler at Susquehanna SP, Harford Co., Maryland (5/18/2013). Media by Mike Burchett.

A Bay-breasted Warbler in Charles Co., Maryland (5/20/2016). View Record Details Media by Mark Johnson.

Bay-breasted Warbler in Baltimore Co., Maryland (5/18/2020). (c) Frode Jacobsen, some rights reserved (CC BY-NC). View Record Details Media by Frode Jacobsen.

A Bay-breasted Warbler in Harford Co., Maryland (9/12/2017). View Record Details Media by Mark Johnson.

A Bay-breasted Warbler in Garrett Co., Maryland (9/27/2009). Media by Mikey Lutmerding.

A Bay-breasted Warbler in Queen Anne's Co., Maryland (9/20/2017). View Record Details Media by Daniel Irons.

Bay-breasted Warbler in Harford Co., Maryland (9/13/2014). Media by Matthew Addicks.

A Bay-breasted Warbler in Harford Co., Maryland (9/3/2017). View Record Details Media by Mary Sweet.

Bay-breasted Warbler in Montgomery Co., Maryland (9/7/2013). (c) Stephen John Davies, some rights reserved (CC BY-NC). View Record Details Media by Stephen John Davies via iNaturalist.

Bay-breasted Warbler in Montgomery Co., Maryland (9/11/2021). (c) Stephen John Davies, some rights reserved (CC BY-NC). View Record Details Media by Stephen John Davies via iNaturalist.

Bay-breasted Warbler in Montgomery Co., Maryland (10/3/2023). (c) Stephen John Davies, some rights reserved (CC BY-NC). View Record Details Media by Stephen John Davies via iNaturalist.

Bay-breasted Warbler in Montgomery Co., Maryland (9/24/2022). (c) Stephen John Davies, some rights reserved (CC BY-NC). View Record Details Media by Stephen John Davies via iNaturalist.

Bay-breasted Warbler in Montgomery Co., Maryland (10/3/2023). (c) Stephen John Davies, some rights reserved (CC BY-NC). View Record Details Media by Stephen John Davies via iNaturalist.

Bay-breasted Warbler in Montgomery Co., Maryland (9/24/2022). (c) Stephen John Davies, some rights reserved (CC BY-NC). View Record Details Media by Stephen John Davies via iNaturalist.

Bay-breasted Warbler in Cecil Co., Maryland (9/8/2022). (c) Jonathan Irons, some rights reserved (CC BY-NC). View Record Details Media by Jonathan Irons.

Bay-breasted Warbler in Cecil Co., Maryland (8/25/2022). (c) Jonathan Irons, some rights reserved (CC BY-NC). View Record Details Media by Jonathan Irons.

Bay-breasted Warbler in Montgomery Co., Maryland (9/24/2022). (c) Stephen John Davies, some rights reserved (CC BY-NC). View Record Details Media by Stephen John Davies via iNaturalist.

Bay-breasted Warbler in Montgomery Co., Maryland (10/3/2023). (c) Stephen John Davies, some rights reserved (CC BY-NC). View Record Details Media by Stephen John Davies via iNaturalist.

Bay-breasted Warbler in Montgomery Co., Maryland (9/28/2023). (c) Stephen John Davies, some rights reserved (CC BY-NC). View Record Details Media by Stephen John Davies via iNaturalist.

Bay-breasted Warbler in Dorchester Co., Maryland (10/1/2023). (c) Jonathan Irons, some rights reserved (CC BY-NC). View Record Details Media by Jonathan Irons via iNaturalist.

Bay-breasted Warbler in Queen Anne's Co., Maryland (9/23/2020). (c) Jonathan Irons, some rights reserved (CC BY-NC). View Record Details Media by Jonathan Irons.