Roger Lederer - Birding - Birding/Wild Birds - Recreation/Outdoors

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Expert Profile: Roger Lederer

Expertise: 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 thirty five years as a professional ornithologist - research, teaching, author, speaker, webmaster of Ornithology.com . Have written thirty scientific papers, two bird field guides, a textbook in ecology and two recent books entitled "Amazing Birds" and "Birds of New England". Have traveled to over 80 countries watching birds.

Education/Credentials
PhD

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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.

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.

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.

Average Ratings
Prestige Points: 16062
Knowledge	9.92 Best of the best
Clarity of Response	9.92 Best of the best
Timeliness	9.92 Best of the best
Politeness	9.93 Best of the best
Number Of Questions (in Past 24 Hours)		0
Max Questions to be Asked (in 24 Hour period)		10
Total Questions (since joining AllExperts)		1519

Recent Reviews from Users

Knowl	Clarity	Time	Politeness	Date
10	10	10	10	10/01/08
10	10	10	10	10/02/08
10	10	10	10	09/28/08
10	10	10	10	09/15/08
10	10	10	10	09/16/08

User Comments

Thank you for your answer. It clarifies a part of the issue. Still wonder what specifically kept them away this year. It was hotter than usual and the
(Chuck on 10/01/08)

Thank You so much!!
(Jackie on 09/15/08)

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Recent Answers from Roger Lederer

2008-10-06 cardinals conspicuously absent from scene: That area of the country is at the edge of their western and northern ranges. They don't migrate, but they do move around a bit. In addition, they are very quiet this time of year - not breeding and not...

2008-10-05 hummingbird housing: Hummingbirds do not nest in birdhouses, so that won't help. But if you have lots of trees and shrubs, and especially shrubs and flowers that produce a lot of nectar, that would be helpful. Plants to...

2008-10-01 Sandhill Cranes: It is well known among ornithologists that all migratory birds initiate their migration based upon photoperiod (amount of daylight). The exact date and speed of travel are affected by the weather, but...

2008-09-28 wild black bird or crow: Best thing to do is contact your local wildlife rehab center or wildlife official for advice. The bird may be ill or poisoned or injured. You might try offering it some moist dog food to see if it eats...

2008-09-28 hummingbirds: There are all sorts of possible explanations for this. Populations fluctuate year to year, depending on the weather, food supply, etc. Then local conditions changes - more development, pollution, pesticides...