"From the New York Times bestselling author of The Genius of Birds and The Bird Way, a brilliant scientific exploration of owls, the most elusive group of birds, and an investigation into why these remarkable and yet mysterious animals exert such a hold on human imagination. For centuries, owls have captivated and intrigued us. Our fascination with these mysterious birds was first documented over 30,000 years ago, in the Chauvet cave paintings in...

This report summarizes the results of a comprehensive inventory of birds and mammals on the Rio Blanco Lake State Wildlife Area (RBL-SWA) located in Rio Blanco County, Colorado. We used a variety of field methods to inventory birds and mammals on the RBL-SWA between January 2017 and December 2021. We confirmed the presence of 241 vertebrate species (195 birds, 38 mammals, 6 reptiles, and 2 amphibians) on the RBL-SWA.We believe the diversity of habitat...

Colorado Parks and Wildlife biologists did a field survey of boreal toads, a state endangered species, at Zimmerman Lake, Larimer County, CO. Each toad caught was check for the chytrid fungus, which attacks amphibians by destroying their skin, disrupting their immune systems and causing heart failure as a way to assess the health of the boreal toad population. The biologists collect the toads eggs to be hatched to restock in locations other locations...

Black-footed ferret, a keystone species, release after an intense breeding program to bring the species back from the brink of extinction. Landowners who allow the ferrets to be released on their land make releases possible. As the ferrets hunt prairie dogs, releasing the ferrets help bring the grassland system back into harmony.