FW: [Tweeters] RFI: Success of the California Condor Rehabilitation Program

Rich ryoung2107 at hotmail.com
Tue Apr 5 09:53:51 PDT 2016

Hi Larry (et al.):

I work for the US Fish & Wildlife Service, and in recent years have been involved in efforts to develop tools to assist in locating possible reintroduction sites for the California Condor throughout its historic range. If you're interested, you can check out:

D’Elia, J., S.M. Haig, M. Johnson, B.
Marcot, and R. Young. 2015.
Activity-specific ecological

niche models for planning reintroductions of
California Condors (Gymnogyps
californianus). Biological
Conservation 184:90-99.
This paper deals with CA, OR and WA, but we are currently looking into applying similar techniques in ID, NV, UT and AZ.

Anyway, I put your question to our regional Condor expert, Jesse D'Elia, and his response is below. Hope that helps.

Rich Young

Date: Tue, 5 Apr 2016 09:24:36 -0700
Subject: Re: FW: [Tweeters] RFI: Success of the California Condor Rehabilitation Program
From: jesse_delia at fws.gov
To: ryoung2107 at hotmail.com

Hugely successful in boosting numbers. From a little over 20 birds in the 1980s (all in captivity) to over 400 today, with more than 200 in the wild.
A few threats still persist (most notably lead poisoning) and the trajectory of the population is currently dependent on human intervention. Voluntary efforts to reduce lead poisoning in AZ and UT, and regulatory measures that will phase out lead ammunition in California by 2019 are trending in the right direction - time will tell if these measures are successful. The potential for releases in northern California and Hells Canyon are being evaluated and could further expand the population into more of its historical range.
On Tue, Apr 5, 2016 at 8:10 AM, Rich <ryoung2107 at hotmail.com> wrote:

Hey Jesse:

This is a question that came across the WA Tweeters list. Do you have any info I could pass along?


Date: Tue, 5 Apr 2016 06:56:04 -0700
From: natural.world.explorer at gmail.com
To: tweeters at u.washington.edu
Subject: [Tweeters] RFI: Success of the California Condor Rehabilitation Program

Does anybody have information or a site for information about how successful the rehabilitation program has been for the California Condor? It seems like I have heard both sides on this through the years, so I don't know what the results really are.
Larry Baxter

Tweeters mailing list
Tweeters at u.washington.edu

Jesse D'Elia, Ph.D. Endangered Species Reintroduction CoordinatorPacific Northwest Gray Wolf CoordinatorU.S. Fish and Wildlife Service, Pacific Regional Office
911 NE 11th Avenue, 5th Floor, Portland, OR 97232503.231.2349 phone; 503.231.6243 faxjesse_delia at fws.gov

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