Author name: Dr. Roger Lederer

Ornithologist and emeritus Professor of Biological Sciences at California State University, Chico, whose academic and research interests are ecology, environmental science, science education and ornithology. Published over thirty scientific research papers, a textbook entitled Ecology and Field Biology, books entitled Amazing Birds, Birds of New England, Pacific Coast Bird Finder, Bird Finder, Birds of Bidwell Park, Latin for Birdwatchers, Beaks, Bones, and Bird Songs, and The Art of Birds . Dr. Lederer has taught ornithology and ecology, worked with environmental organizations and schools on research and education projects, has traveled to over 100 countries, given many public presentations, and knows exactly what birds you will find anywhere in the world.

Birds as Indicator Species

Ecological indicators are useful tools for measuring changes over time, and provide valuable insights into how and why the environment is changing. We can measure the changing status of the environment, such as biodiversity – fewer species, more species, and/or different species; the reasons for these changes (habitat destruction or degradation, pollution, climate change, introduced …

Birds as Indicator Species Read More »

Acorn Woodpecker

The Acorn Woodpecker is a common woodpecker  found in the western parts of California and Oregon and parts of the southwestern U.S. and Mexico. All year where there are an abundance of oak trees, you will often see these woodpeckers displaying with their outstretched wings and calling with a distinctive nyaah, nyaah, nyaah. Its scientific …

Acorn Woodpecker Read More »