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Bald Eagles Return to the United States
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Impressive graphs
  • 7/24/2015 2:11:35 AM
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All your graphs you've presented here and in the past are impressive. :) (shake hands)

Re: Bald eagle stats
  • 7/23/2015 11:34:05 AM
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Maps of tracking bad eagles exist from one area to another.  Some adult bald eagles migrate from USA (California) to. Canada and back in a complex way. Migration routes in the Fall somewhat differ from those in the Spring. Satllete telemetry is used to track complex migration patterns. 

Re: Bald eagle stats
  • 7/21/2015 9:37:04 AM
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I wonder if it would be useful to map eagles by area size, or even forest areas to better analyze perhaps some theories about where they choose to live or find it difficult to survice. I've seem quite a few of them here in Florida over the years and they do capture the attention of those fortunate enough to view them. 

Probably doesn't need a permit
  • 7/18/2015 12:08:05 PM
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Ha! That's not a nest in Florida, Robert... it's a treehouse! Eagle nests are very impressive and unmistakeable.

Thanks for a great report -- enocuraging to see progress around this valued and beautiful species.

Bald eagle stats
  • 7/17/2015 11:44:48 AM
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 According the U.S. Wildlife Service, bald eagles were first listed as endangered specieis in 1967. In 2007,  the Dept of Interior took them off the list because they are were no longer endangered.  To keep track of  bald eagle population trends, some states perform analytics.

Re: 106 in PA?
  • 7/16/2015 10:53:40 AM
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I actually have only seen a bald eagle in the zoo. In my area we have many hawks but no bald eagles. It is interesting to the dispersion of the eagles, it would be also be interesting to see the trend over time do the lesser states catch up or do the states with more eagles continue to expand their numbers. It's encouraging to see the return from the brink.

Re: 106 in PA?
  • 7/15/2015 1:08:03 PM
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The article I linked to in my blog:

http://www.biologicaldiversity.org/species/birds/bald_eagle/report/#us

 

has a link to the following "how we colledted the data" page:

http://www.biologicaldiversity.org/species/birds/bald_eagle/report/methods-06-2007.html

 

Re: 106 in PA?
  • 7/15/2015 12:02:31 PM
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@Robert, I would like to know the central source of 2007 data for all states.

Re: 106 in PA?
  • 7/15/2015 8:20:02 AM
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I see at least one a week now but that has a lot to do with the fact that I live in one of those dark green states and near a few nesting pairs.  Before I moved here I had only seen one two or three times and I spent a whole lot of time in another one of those dark green states.  

Their comeback really is a big deal and I'm surprised that the last counts for every state are 8 years old. This is one of those problems with trying to track down data, it can be consistent for years then just fall off completely because someone took up a new hobby, funds were cut or someone decided it just wasn't important anymore. 

 

Re: Great comeback
  • 7/14/2015 8:02:09 PM
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I would hope analytics would help us see when changes we make are effecting a population. With good analysis, we should be able to spot a trend before it becomes a big problem.

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