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| Calling Dr. Sharpe; Eagle mates | |
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| Tweet Topic Started: Oct 4 2006, 02:12 PM (968 Views) | |
| harpo516 | Oct 4 2006, 02:12 PM Post #1 |
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We were commenting on the Martha/George article and I had a question: When an eagle loses a mate - do they find another one or end up alone? Do they mate for life or do they change from time to time? I believe the article said (without going back to it) that the female was originally injured by an aggressive female who I would guess was "checking out the territory". Are there such confrontations - are they frequent - does the loser move on even if it's her nest/mate? Just curious and don't have a clue. Thanks |
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| Eagle Guy | Oct 4 2006, 05:24 PM Post #2 |
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If an eagle loses a mate it will try to find another one. They generally will mate for life, but if they are unsuccessful at breeding for a few years in a row, they may break up and find other mates. I doubt that there are many confrontations they result in injury to a bird. Usually it is a lot of chasing and vocalizing. |
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| harpo516 | Oct 4 2006, 05:32 PM Post #3 |
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thanks for the answer - did you see the article referenced in today's thread (and I think yesterday)? I would guess the 2nd injuries were just too bad - more than just broken bones, etc. I'm sure we've all heard about "survival of the fittest" and how animals work hard at attracting a mate - looking maybe unknowlingly for those strong genes that will hopefully insure survival of the species (apparently even in humans) But I never really thought about animals who do "mate for life" - if it doesn't produce offspring - that they might indeed move on! Hmmmmm...... |
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| KLJinOz | Oct 10 2006, 10:00 PM Post #4 |
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Hi Dr Sharpe, As you may have been reading on chat forum (Videos, 'Everything Else' thread), we've been discussing the gene dynamics in cats and it prompted me to research whether there were variant for eagle genes. I couldnt find much on the topic, obviously a university level discussion. Do you know if there are 'strains' that are identified in eagles (other than locality such as Darwin pointed out)? Here is an interesting web site that I found a lot of scientific info but nothing on genetics. http://animaldiversity.ummz.umich.edu/site...cocephalus.html KLJinOZ |
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| Hulabird | Oct 14 2006, 12:31 AM Post #5 |
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Dr Sharpe, in all our grief yesterday, it seems we forgot to check on you and the crew. You all must be greiving too. We're with you. Is everybody okay? |
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| Eagle Guy | Oct 15 2006, 02:19 PM Post #6 |
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Everyone is doing fine. We expect about 33% mortality of the first year birds, but it is still difficult to find them. We actually just recovered another young bird near Fresno yesterday. I guess Fresno is not a good place for bald eagles. |
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| Bea | Oct 15 2006, 02:38 PM Post #7 |
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Was that A-27, the eagle that was mentioned in the September 13 Update? So so sad. Any idea what happened? |
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| Jeanette | Oct 16 2006, 01:55 PM Post #8 |
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Dr Sharpe, Could you give me the website again of A49 being tracked on Santa Cruz and Santa Rosa Islands again. I seem to have lost it. Sorry. Thanks. Jeanette |
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| Eagle Duo | Oct 16 2006, 03:04 PM Post #9 |
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Eagleholic
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Jeanette, check the LINKS thread under OBSERVATIONS. That link, along with a lot more, is listed there for easy reference. |
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| Eagle Guy | Oct 16 2006, 04:07 PM Post #10 |
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It was A-53, one of this year's releases. It was just lying under a tree in a cow pasture. Can't tell what happened. |
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| ElaineRuth | Oct 16 2006, 04:39 PM Post #11 |
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Boy, am I getting nervous!!!! This is as bad as Deal or No Deal!!!!! I pray we have A-49 Cruz in our Case! Stay safe, Baby!
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| Bird | Oct 16 2006, 06:58 PM Post #12 |
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I was just looking through the updates trying to find a picture of 53 but was unsuccessful. However, I did get to relive those days after 49's fledging as she grew accustomed to her surroundings and started to move away from the nest. Ah, nostalgia. I am so glad she is doing well. A-61 and A-53 are two birds that we know about who haven't made it. Have there been more? Are there any that are missing in action? Do the eagles have a better chance of survival if they stick together? I'm very sorry, Dr. Sharpe. I know it's expected, but I'm very sorry. |
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| Eagle Guy | Oct 16 2006, 07:22 PM Post #13 |
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We have lost several birds this year and there are many birds from previous years that are lost in action, that is, we don't know for sure that they are dead. Last winter I found a live bird on Santa Rosa that we assumed died in 2002, so we don't completely give up on a bird when its transmitter dies. I think staying in a group probably does increase survival by increasing the chances of finding and sharing food. |
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| ostrich2 | Oct 16 2006, 07:48 PM Post #14 |
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Dr. Sharpe, do you mean that the lost birds this year other than A61 and A53 are confirmed dead, or just suspected dead because of nonfunctioning transmitters? Are the losses so far in line with the 33% mortality rate, or is there anything unusual happening? |
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| Hulabird | Oct 16 2006, 08:37 PM Post #15 |
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Great question Ostrich. You're always thinking ahead. I spend more of my time with my heaart on my sleeve. Thanks for asking. Can't wait for the answer. |
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6:28 AM Jul 11