National Wildlife is a magazine is published by the National Wildlife Federation, the largest private conservation group in the United States. It is quarterly, has an average circulation per issue of more than 300,000 and focuses on storytelling related to wildlife and habitat conservation, environmental justice, climate change, and more. They are looking for features from 1,000 to 2,000 words and departments (short pieces) from 350 to 900 words. According to their pitch guide, they pay $1.50 a word for print. For web, pay is negotiated per article and typically starts at $250. To learn more, refer to this page.