Pacific-slope/Cordilleran Flycatcher Empidonax difficilis/occidentalisReviewable (MD/DCRC)    Synonyms: Complex Empidonax difficilis-occidentalis, PSFL/COFL, Western Flycatcher.
Kingdom Animalia   >   Phylum Chordata   >   Class Aves   >   Order Passeriformes   >   Family Tyrannidae   >   Genus Empidonax   

Status:

This species pair is nearly impossible to separate in the field without documentation of vocalizations and/or DNA analysis. Both are rare vagrants to the East Coast, but Pacific-slope is the more expected of the two. Maryland's first record of "Western" Flycatcher was found by Kathy Calvert in Caroline County on 11/16/2015. It was accepted as MD/DCRC #2015-086.

There are 7 records in the project database.

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Pacific-slope/Cordilleran Flycatcher in Frederick Co., Maryland (12/15/2020). (c) Stephen John Davies, some rights reserved (CC BY-NC). Photo by Stephen John Davies via iNaturalist. (MBP list)

Pacific-slope/Cordilleran Flycatcher in Frederick Co., Maryland (12/15/2020). (c) Stephen John Davies, some rights reserved (CC BY-NC). Photo by Stephen John Davies via iNaturalist. (MBP list)

Pacific-slope/Cordilleran Flycatcher in Frederick Co., Maryland (12/15/2020). (c) Stephen John Davies, some rights reserved (CC BY-NC). Photo by Stephen John Davies via iNaturalist. (MBP list)

Pacific-slope/Cordilleran Flycatcher in Frederick Co., Maryland (12/15/2020). (c) Stephen John Davies, some rights reserved (CC BY-NC). Photo by Stephen John Davies via iNaturalist. (MBP list)

Pacific-slope/Cordilleran Flycatcher in Frederick Co., Maryland (12/15/2020). (c) Stephen John Davies, some rights reserved (CC BY-NC). Photo by Stephen John Davies via iNaturalist. (MBP list)

Pacific-slope/Cordilleran Flycatcher in Frederick Co., Maryland (12/15/2020). (c) Stephen John Davies, some rights reserved (CC BY-NC). Photo by Stephen John Davies via iNaturalist. (MBP list)

Pacific-slope/Cordilleran Flycatcher in Frederick Co., Maryland (12/15/2020). (c) Stephen John Davies, some rights reserved (CC BY-NC). Photo by Stephen John Davies via iNaturalist. (MBP list)

Pacific-slope/Cordilleran Flycatcher in Frederick Co., Maryland (12/15/2020). (c) Stephen John Davies, some rights reserved (CC BY-NC). Photo by Stephen John Davies via iNaturalist. (MBP list)

Pacific-slope/Cordilleran Flycatcher in Frederick Co., Maryland (12/15/2020). (c) Stephen John Davies, some rights reserved (CC BY-NC). Photo by Stephen John Davies via iNaturalist. (MBP list)

Pacific-slope/Cordilleran Flycatcher in Frederick Co., Maryland (12/12/2020). (c) Tim Frye, some rights reserved (CC BY-NC). Photo by Tim Frye via iNaturalist. (MBP list)

Pacific-slope/Cordilleran Flycatcher in Frederick Co., Maryland (12/15/2020). (c) Stephen John Davies, some rights reserved (CC BY-NC). Photo by Stephen John Davies via iNaturalist. (MBP list)

Pacific-slope/Cordilleran Flycatcher in Frederick Co., Maryland (12/13/2020). (c) Dany Sloan, some rights reserved (CC BY-NC). Photo by Dany Sloan via iNaturalist. (MBP list)


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