Re: [cayugabirds-l] Goldfinch Lifespan

2017-05-30 Thread khmo
The eldest are documented at around 9 years. There's no way to compute
an average. 

For this and other longevity questions, this is the most accurate
source: 

https://www.pwrc.usgs.gov/BBL/longevity/Longevity_main.cfm 

John

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John and Sue Gregoire
Field Ornithologists
Kestrel Haven Migration Observatory
5373 Fitzgerald Rd
Burdett, NY 14818
42.443508000, -76.758202000 

On 2017-05-30 12:40, Robin Cisne wrote:

> How long, on average, do goldfinches live?
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Re: [cayugabirds-l] Goldfinch Lifespan

2017-05-30 Thread Robin Cisne
How long, on average, do goldfinches live?





*"True compassion is more than flinging a coin at a beggar; it comes to see
that an edifice which produces beggars needs restructuring." — Rev. Dr.
Martin Luther King, Jr.

 *





On Mon, May 29, 2017 at 9:05 PM, Peter  wrote:

> Folks.
>
> I've read in both the book "Into the Nest (by Laura Erickson & Marie Read)
> and on the Lab's Birds of North America online that, on the average, male
> goldfinch live longer than females. Can anyone shed light on  why this is
> so? I recently purchased a new niger tube feeder that is 3 feet long with a
> spiral wrap-around perch. It can handle many finches and is not
> disappointing!So far I've had a total of 8 finches there at the same time.
> But I AM seeing many more males than females and hence my question. Thanks
> for the help!!
>
>
>
>
> --
>
> Cayugabirds-L List Info:
> http://www.NortheastBirding.com/CayugabirdsWELCOME
> http://www.NortheastBirding.com/CayugabirdsRULES
> http://www.NortheastBirding.com/CayugabirdsSubscribeConfigurationLeave.htm
>
> ARCHIVES:
> 1) http://www.mail-archive.com/cayugabirds-l@cornell.edu/maillist.html
> 2) http://www.surfbirds.com/birdingmail/Group/Cayugabirds
> 3) http://birdingonthe.net/mailinglists/CAYU.html
>
> Please submit your observations to eBird:
> http://ebird.org/content/ebird/
>
> --
>

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[cayugabirds-l] Goldfinch Lifespan

2017-05-29 Thread Peter

Folks.

I've read in both the book "Into the Nest (by Laura Erickson & Marie 
Read) and on the Lab's Birds of North America online that, on the 
average, male goldfinch live longer than females. Can anyone shed light 
on  why this is so? I recently purchased a new niger tube feeder that is 
3 feet long with a spiral wrap-around perch. It can handle many finches 
and is not disappointing!So far I've had a total of 8 finches there at 
the same time.  But I AM seeing many more males than females and hence 
my question. Thanks for the help!!





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