Migration

Warbler Migration Map 2027: Arrival Dates by State

Warbler arrival runs from mid March in Oregon to late September in Virginia, across 50 states with enough data. Dates are typical for 2016-2025, not a forecast for 2027.

State	Main species	First arrivals	Peak	Most gone by
Oregon	Yellow-rumped Warbler	Mar 15-21	Apr 15-21	Oct 15-21
Maryland	Common Yellowthroat	Apr 8-14	May 8-14	Oct 22-31
Nevada	Northern Yellow Warbler	Mar 15-21	May 15-21	Nov 1-7
Washington	Yellow-rumped Warbler	Mar 15-21	Apr 22-30	Oct 15-21
Alaska	Yellow-rumped Warbler	Apr 15-21	May 15-21	Oct 1-7
Connecticut	Northern Yellow Warbler	Apr 15-21	May 15-21	Oct 22-31
Kansas	Northern Yellow Warbler	Apr 1-7	May 8-14	Oct 15-21
Massachusetts	Northern Yellow Warbler	Mar 15-21	May 15-21	Oct 22-31
Michigan	Northern Yellow Warbler	Mar 22-31	May 15-21	Nov 8-14
New York	Northern Yellow Warbler	Apr 15-21	May 15-21	Oct 22-31
Ohio	Northern Yellow Warbler	Mar 22-31	May 8-14	Oct 15-21
Pennsylvania	Common Yellowthroat	Apr 15-21	May 15-21	Oct 15-21
Rhode Island	Northern Yellow Warbler	Apr 15-21	May 15-21	Oct 22-31
Utah	Northern Yellow Warbler	Apr 15-21	May 22-31	Oct 15-21
Colorado	Northern Yellow Warbler	Mar 15-21	May 22-31	Feb 1-7
Idaho	Northern Yellow Warbler	Apr 22-30	May 22-31	Oct 8-14
Iowa	Common Yellowthroat	Apr 22-30	May 22-31	Oct 8-14
Maine	Common Yellowthroat	Apr 1-7	May 22-31	Oct 15-21
Nebraska	Northern Yellow Warbler	Apr 22-30	May 15-21	Oct 8-14
New Hampshire	Common Yellowthroat	Apr 1-7	May 22-31	Oct 15-21
South Dakota	Northern Yellow Warbler	Apr 1-7	May 15-21	Dec 15-21
Vermont	Common Yellowthroat	Apr 15-21	May 22-31	Oct 8-14
Wisconsin	Common Yellowthroat	Apr 15-21	May 22-31	Oct 15-21
Minnesota	Common Yellowthroat	Apr 15-21	Jun 1-7	Oct 15-21
Montana	Northern Yellow Warbler	Apr 15-21	Jun 1-7	Oct 22-31
North Dakota	Northern Yellow Warbler	May 1-7	May 22-31	Oct 22-31
Wyoming	Northern Yellow Warbler	Apr 8-14	Jun 1-7	Oct 22-31
New Mexico	Wilson's Warbler	Mar 22-31	Sep 8-14	Nov 1-7
District of Columbia	Yellow-rumped Warbler	Apr 8-14	Apr 22-30	Nov 1-7
Arkansas	Yellow-rumped Warbler	Mar 22-31	Apr 8-14	Oct 22-31
North Carolina	Yellow-rumped Warbler	Oct 1-7	Mar 8-14	May 8-14
Alabama	Yellow-rumped Warbler	Oct 8-14	Mar 1-7	Jun 8-14
Georgia	Yellow-rumped Warbler	Oct 8-14	Mar 8-14	Jun 8-14
Louisiana	Yellow-rumped Warbler	Oct 8-14	Dec 22-31	Apr 22-30
Mississippi	Yellow-rumped Warbler	Oct 8-14	Mar 8-14	Jun 8-14
South Carolina	Yellow-rumped Warbler	Oct 8-14	Mar 1-7	Jun 1-7
Texas	Yellow-rumped Warbler	Sep 22-30	Jan 22-31	May 1-7
Arizona	Yellow-rumped Warbler	Aug 22-31	Nov 1-7	Jun 15-21
Illinois	Yellow-rumped Warbler	Aug 22-31	Oct 8-14	May 22-31
Indiana	Yellow-rumped Warbler	Sep 1-7	Oct 8-14	May 22-31
West Virginia	Yellow-rumped Warbler	Sep 1-7	Oct 15-21	Jul 15-21
New Jersey	Yellow-rumped Warbler	Sep 8-14	Oct 15-21	May 22-31
California	Yellow-rumped Warbler	Sep 15-21	Dec 8-14	May 8-14
Delaware	Yellow-rumped Warbler	Sep 15-21	Oct 15-21	May 15-21
Florida	Palm Warbler	Jul 22-31	Nov 1-7	Jul 15-21
Kentucky	Yellow-rumped Warbler	Aug 22-31	Oct 15-21	Nov 1-7
Missouri	Yellow-rumped Warbler	Sep 15-21	Oct 15-21	May 15-21
Oklahoma	Yellow-rumped Warbler	Sep 22-30	Oct 22-31	May 8-14
Tennessee	Yellow-rumped Warbler	Sep 22-30	Oct 22-31	May 8-14
Virginia	Yellow-rumped Warbler	Sep 22-30	Oct 22-31	May 15-21

First arrivals = first week reports reach 10% of the usual in-season rate; for several species the earliest of them. Most gone by = last week at half that rate. Definitions.