Something I never would have thought of: Teflon coated light bulbs are toxic to chickens. In the letters section of this month’s issue of Backyard Poultry Magazine is the story of a woman who lost a flock of nineteen chickens after they succumbed to fumes put off by a GE Rough Service Worklight that was in the coop. When the bulbs heat up they release fumes that are deadly to chickens and other birds. According to the McMurray Hatchery website, birds are particularly vulnerable to airborne toxins. I can’t help but wonder about the effect of these fumes on humans too. Several years ago, Dupont was unsuccessfully sued over the toxicity of Teflon in cookware.

Sylvania, apparently, has a warning label on their Teflon coated bulbs, “WARNING: This product contains PTFE (polytetrafluoroethylene–“Teflon” is a brand name). When heated, it creates fumes potentially fatal to confined birds.” GE does not have a warning label.

I let the ladies take the winter off of laying and it never dips below 40ºF here so we do not have a light bulb in our coop. But for those of you who do, make sure you don’t use one of these shatter resistant, Teflon coated bulbs.

See also the McMurray Hatchery warning on shatter resistant bulbs.