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Thread subject: Are there bachelor/bachelorette Osprey?
Name Date Message
Lynn 07/08/04 12:17 am The reasoning behind this question is that on a recent visit to the Connecticut River we saw an osprey (assumed it was a male) who hunted fish in the river. Each & every fish he caught he ate himself on a very well used tree limb near to our boat. He never flew off to a nest with his catch. [I couldn't have DPOF cam but found a substitute.]
So, I was wondering if there are bachelor/bachelorette osprey.
Tiger 07/08/04 04:44 am I think that the answer may be yes. The one I am most familar with is one that goes by the tag of 08(97). Now it is not for want of trying but this bird has been tagged a serial non-breeder.

It must have been particularly galling for him in 2003 when his g/f from 2002 went off and set up home with the newly single bird 03(97).

MInd you it may just because of a lack of females as there are now 7 males at the site and only one female.

Anyway to read about a week in the life of 08(97)
see:

http://www.ospreys.org.uk/AWOP/Update%20Diary1%202004%20.htm
Lynn 07/08/04 01:14 pm Thanks Tiger for the reply & the interesting Website. I know that Peregrine Falcons mating occurs in the 2nd year of life. This Osprey I viewed seemed to 'live' in a tree with no nest. I thought that perhaps the same was true for osprey. Also in the river there are so many occupied nests! Thanks again.
Marie 07/08/04 05:51 pm Another reason for seeing an Osprey feed by itself could be that it isn't mature enough to breed and has spent its previous year in the wintering grounds. Then it flies(migrates) to where it instinctively knows where it was hatched, hoping to find a new territory the following year. Probably seen to feed alone too as it starts to select a territory and makes an attempt to build a nest. It will not breed that year. The following year it will return to reclaim, if it is lucky, the nest it started the year before. Also has to impress and select a mate. Depending on who you READ it is suggested that an osprey has to be 3-5 yrs old before being a successful breeder. Lots of theories as to why ospreys feed alone. Perhaps too the male had already provided for his family and wanted to get away QUIETLY around the corner to reward himself after all the hard work he had done all day...smile. Wouldn't You do the same???
Lynn 07/08/04 07:23 pm Thanks for being so informative. So, it appears that Osprey are similar in respect to the age of when they can sucessfully breed.

I'm so full of questions due to the fact that I also watch Peregrine Falcon cams. Last year an older Peregrine laid a large white egg and others. The experts at the cam stated that either would not hatch or that if it did would not survive & that the egg color was indicative of the end of her egg laying ability. Knowing that #4 came from a white egg, I wonder he has a problem from the beginning. I also wonder how old Betty is.
Celeste 07/08/04 08:10 pm Hi Lynn, with regard to eggs, according to Poole's book on ospreys, white is one of the colors an osprey egg can be. Also, in May of this year, some of us wrote down some osprey facts on the message board that we picked up from Pooles' book and other books on osprey. You might find it interesting. I have also read what Marie said regarding young osprey coming back to their nesting grounds the 2nd year after fledging, and not necessarily able to attract a mate, but is in "early preparation" for his future role. An osprey nest succeeds best when the male has some experience. It is not so necessary for a female to have experience, but even one year experience for the male helps the ultimate success of the nest.
Lynn 07/08/04 10:37 pm Celeste thank you. I will check out those facts and will certainly look into Pooles'. I am glad to have been an avid onlooker. What a thrill to have rooted for Spirit when he was the underling - now look at him! He's out of the nest daily. Soon he'll be out and learning fish, and he won't have to cope with CZ's bossiness nor share with Peace. I'm praying for a safe migration for the whole family.

Copyright © 2004 DPOF

Tom Throwe
Last modified: Fri Dec 31 23:49:43 EST 2004