Chris and other interested Tweets,

Is this what you were looking for?

Arbib, Robert S., Jr. 1981. The Christmas bird count: constructing an
"ideal model." In: Ralph, C. John; Scott, J. Michael, eds. Estimating
numbers of terrestrial birds. Studies in Avian Biology 6: 30-33.

I think I would rather be a codger than a coot.

Cheers,
Paul

Paul Moorehead
Guemes, WA
pjm at sos.net

Chris Hill wrote:
>
> Hi Tweets,
>
> and greetings from South Carolina.
>
> I'm sifting through my library looking for an old article by Bob Arbib in
> American Birds magazine on visually estimating the numbers of flocks of
> birds.