Floris van Breugel / Syncronous Fireflies (Photinus carolinus) illuminate the lush forests of Smoky Mountains National Park, Tennesse, USA, July

Floris van Breugel,Floris van Breugel / Tent at night surrounded by Fireflies (Photinus carolinus) Great Smoky Mountains National Park, Tennessee, USA, June 2013.

Gerrit Vyn / Tennessee Warbler (Vermivora peregrina) male perched in a pine tree branch, singing in spring, Cold Lake, Edmonton, Alberta, Canada. May.

Tim Fitzharris / Little Pigeon River cascading among rocks and colorful Maple leaves, Great Smoky Mountains National Park, Tennessee

Kirkendall-Spring / Forest along Roaring Fork Motor Nature Trail, Great Smoky Mountains NP, Tennessee, USA

Kirkendall-Spring / View of Tipton Place in Cades Cove, Great Smoky Mountains NP, Tennessee, USA

Tim Fitzharris / Roaring fork river, Great Smoky Mountains National Park, Tennessee

Tim Fitzharris / Autumn leaf on boulder, Little River, Great Smoky Mountains National Park, Tennessee

Tim Fitzharris / Bald Cypress (Taxodium distichum) at upper Blue Basin, this is a major migratory bird stopover for the Mississippi Flyway, Reelfoot National Wildlife Refuge, Tennessee

Oliver Hellowell / Maple leaf (Acer sp) which is ragged in autumn, Tennessee, November.

Oliver Hellowell / Autumn leaves in Tennessee, November, 2017

Oliver Hellowell / Autumn forest landscape in Tennessee, USA, November, 2017