Ectopistes migratorius

tags: mystery bird, identify this bird, birds, mystery bird, bird ID quiz [Mystery bird, I will identify this bird for you in 48 hours] Passenger Pigeon, Ectopistes migratorius. Image: Dan Tallman. Please name at least one field mark that supports your identification. ID Keys: Wine-red breast, slate blue head and rump, slate grey back. Review all mystery birds to date.