[cobirds] I like Hugh Kingery's idea of an "anti-pollution" formula.

The whole idea is to get the biggest bang for your buck!

So I'll propose a formula to minimize the miles driven (and the exhaust pipe pollution) to see a bird.

The Formula:

miles driven per birder divided by species seen 

leads to 

drive alone to Bonny and see 50 species and drive back = 300 miles divided by 50 species = 6.0 - a high number - not good

But make the same trip with 4 birders in a car : 300 miles driven divided by 50 species, DIVIDED by 4 birders, so a score of 1.5 per birder - much better.

The idea is to have the lowest number, so driving 2 miles alone to see 50 species would be 2/50 = .04  a low number -very good

Seeing 10 species at a feeder, zero miles, would be ZERO miles, zero pollution, which is the lowest score possible.

A Big Year in Denver County by bicycle:

zero miles of tailpipe pollution for 150 species.   Again ZERO

Or do what I do - take a nap. Zero miles, zero birds. Wow! ZERO.

The main point is to get a buddy or three to join you for longer trips.

 "Let's Go Birding!"

Joe Roller, Denver

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