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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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