Birding/Expert Profile

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Any and all about WILD birds - the science of ornithology. Information about birdwatching, ecology, conservation, migration, behavior, banding, rehabilitation, feeding, songs, binoculars, identification, and careers in ornithology. No questions about pet or caged birds, please.

Experience in the area

Have a PhD and over forty years as a professional ornithologist - research, teaching, author, speaker, webmaster of . Have written thirty scientific papers, three bird field guides, a textbook in ecology four other bird books, the latest being "Beaks, Bones, and Bird Songs". Have traveled to 100 countries watching birds and have spoken to hundreds of groups about birds.


PhD in Zoology/Ornithology; Emeritus Professor of Biological Sciences; former Dean of the College of Natural Sciences at California State University, Chico

What do you like about this subject?

Birds are something that everyone of any ability can enjoy; birds also teach about nature and conservation as well and are ecological indicators of a changing environment.

What do you still hope to achieve/learn in this field?

I hope to keep learning and learning as the more I know the more I know there is to know. And I hope to keep educating the public as to the importance of birds and the environment.

Something interesting about this subject that others may not know:

Birdwatching is the fastest growing outdoor sport in the U.S.and many other countries. It is the most accessible of all outdoor sports - from children to seniors, and the fit to the physically challenged.

Something controversial or provocative about this subject

Birds are threatened by habitat destruction, pollution, and global warming.Unfortunately, at least 25% of the bird species in the U.S. are in decline.

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Bill08/21/16101010Thanks, Roger! Have not seen a lot .....
Bill08/10/16101010Many thanks! I had not considered that .....
Richard07/01/16101010Thank you for your quick response I .....

Recent Answers from Roger Lederer

2016-08-22 crow question:

Here's my opinion. When a bird is kept in captivity, for whatever reason, he/she is kept out of the gene pool. He/she is as good as dead because he/she cannot reproduce. I would rather allow a partially

2016-08-22 crow question:

I have no idea whether the feather loss would be connected to any other conditions that might lead to a shorter life span. I can't suggest anything for entertainment as I am not an expert in caged birds

2016-08-21 Do you know anything about crow behavior?:

This is the time of year when birds migrate and they often gather in big groups before or just as migration starts. It's safer in groups so lots of birds spend the weather together. So this is just their

2016-08-19 injured Dove:

Sounds like the bird ran into a window. Sounds serious. I suggest you call either your local wildlife rehab center or wildlife official or veterinarian. One of them should be able to help. There's nothing

2016-07-01 Bluebird eggs:

When the eggs are laid, the parents may or may not start to incubate them, for some reason. The eggs will stay fertile and good and when incubation begins all will be fine. Three or four weeks is unusual


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