Illustration
Mainespring migration
When does spring bird migration peak in Maine?
Spring bird migration usually peaks from February to June.
Checked Sep 30.
Plan from a town
Frost dates and what's in season nearby
Places by state
Maine
- AcadiaUsual window passed
At one spot: the end of April to the beginning of June
Official reports
Dated and linked
- Sep 30Park ServiceBest spring birding from the end of April to the beginning of June; Jesup Path, Hemlock Road and Wild Gardens PathSource (opens National Park Service, Birding Sieur de Monts (Acadia) in a new tab)
- Sep 30Park ServiceAn entrance pass is required year-round; Cadillac Summit Road needs a vehicle reservation from mid-May into OctoberSource (opens National Park Service, Acadia fees and passes in a new tab)
- Sep 28Park ServiceFall color usually peaks in mid-OctoberSource (opens National Park Service, Acadia weather in a new tab)
- National Park Service sources: no claim to original U.S. Government works.
Show all 4
- Sep 26Park ServiceRoad to the 1,530-ft summit opens mid-April, closes by December 1; reservations mid-May to mid-October; summit crowded most of the summerSource (opens National Park Service, Drive Cadillac Mountain in a new tab)
- National Park Service sources: no claim to original U.S. Government works.
How do you track spring migration? Each place moves through 4 stages: Birds arriving, Numbers building, Peak numbers and Birds moving on. Every stage we show comes from a dated report with its source, and every forecast lists its sources.