Did you know that the winter ranges of birds is a climate change indicator? Changes in climate can affect ecosystems by influencing animal behavior and ranges. Birds are a particularly good indicator of environmental change. You can join in participatory science by sharing your bird sightings with audubonsociety's #ChristmasBirdCount that lasts until January 5th. 🐦 Click our link in bio to learn more about the data and how to join in the Christmas Bird Count. 📷: usfws