On Thu, 17 Dec 2009 05:25:17 +0000 (UTC), (Don
Klipstein) wrote:

Birds have actually built nests in the lights so turning on a heater
every time a bird lights in the light (pun) you would turn on heat.

Although I don't doubt that birds have built nests in traffic signals, I
have yet to see this even once so far atage in late 40's and living and
working entirely in urban and inner-ring-suburb locations. And I have
roughly 50,000 miles experience driving cars almost entirely in such
areas, along with a goodly 300,000 miles driving bicycles on streets in
such areas, and walking on streets in such areas likely having lifetime
mileage for me to be an additional 30,000 miles.

Perchance Philadelphia's birds are not as birdbrained as their
politicians and Philadelphians electing/re-electing them to office are?

I can't speak for Philly, but in Black, AL there has only been one
signal light (period). Years ago (70/80s) "The boys" shot the lamps
out of the blinker light (red/amber). Martins (birdies) made a nest in
the signal. Eventually, a new highway was built around Black, Al and
the signal was still the only one ever placed at the only intersection
- if you visit Black, AL.