Essay: Northern cardinals cheer up winter Margaret BrittinghamJanuary 6, 2023 Learn more about this colorful backyard bird, like how brighter males have better territories and tend to their young more. ConservationEssayWild Pennsylvania
This Tough, Little Bird Loses Ten Percent of Its Weight Each Night Margaret BrittinghamJanuary 29, 2021 Black-capped chickadees clamor around bird feeders in the winter. They have a diet that many of us might envy -- they eat all day long, and lose much of it overnight. Bird FilesConservationWild Pennsylvania
For Smart, Social Crows, Pennsylvania is a Warm Winter Oasis Margaret BrittinghamDecember 11, 2020 During December, crows congregate in raucous urban roosts. Here's the lowdown on why they're here, and what they're up to. Wild PennsylvaniaWildlife
