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Index of Subjects could there be 100 ,1000 etc i have not encountered no ----- Original Message ----- From: "David & Alison Webster" <dwebster@glinx.com> To: <naturens@chebucto.ns.ca> Sent: Wednesday, January 02, 2008 9:46 PM Subject: Re: [NatureNS] belted kingfisher story > Hi Murray & All, Jan 2, 2008 > I agree one must be wary of accepting any measure of a wild > population as a fact and +- figures convey no information if the > variance measure (e.g. standard deviation, standard error, 95% > confidence limits) is not specified. > > But-- the two estimates, obtained apparently by somewhat different > methods, of 16,000 KF (-4.67 % trend over 40 years) as compared to 4,100 > pairs (no change over 4 centuries) are remarkably similar. Note also > that no change over 400 years does not conflict with a modest decline > over 40 years. This of course does not demonstrate that either of these > estimates is close to being realistic. > > But with respect to your 50 pairs in three counties, have you really > bushwacked every potential lake edge, pond, run and stillwater in these > three counties ? If not then could there be 100, or 1000 or 3000 pairs > that you have not encountered ? > > A belated Happy New Year, Dave Webster, Kentville > > dowitcher wrote: > >> reading all the stuff on the thousands of belted >> >> kingfishers in nova scotia,i find it very hard to believe the stats. >> >> a matter of fack i dont. >> >> i done a lot of birding in yarmouth ,digby and shelburne counties >> over the years and i know where 99 .9 per cent >> >> of them are each year. >> >> we at down and counted them up today and could not come up with 50 >> pair for the three counties total. >> >> now if you was to believe those stats i read about >> >> they must be hanging like grapes every where else. >> >> brrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr >> >> Murray R Newell >> Cape Sable Island >> Nova Scotia >> >
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