Staying Warm!

A winter storm struck our area recently, bringing a bit of snow and ice but not nearly as much as expected. The worst part was that for several days temperatures stayed below freezing. What fell stuck around, keeping most people inside. Yet the neighborhood squirrels and birds were undeterred from going about their usual business.

Carolina wrens, Carolina chickadees, northern cardinals, blue jays, and several species of sparrows were frequent guests at our backyard feeders. There were a few dark-eyed juncos, brown-headed nuthatches, and brown thrashers, too. During an outing, my wife spotted the usual Canada geese at a nearby pond. They all managed just fine, thanks in part to their feathers.

Cuddy’s Duck

Feathers serve many functions, one of the most important in cold environments is helping keep birds warm. And of the types of feathers on birds, the innermost layer (down) is critical for insulation. Much shorter than contour and flight feathers, down has flexibly stubby structures that stick together to trap air and shut in body heat.^{1, 2} People ages ago, in their struggles to adapt to extreme cold, figured out waterfowl are equipped with down that’s well suited for human use. Today, manufacturers of winter jackets and bedding products rely on down feathers primarily from ducks and geese.

Of all avifauna cherished for their down, the common eider duck remains the gold standard.³ In the United Kingdom, the species is sometimes referred to as “Cuddy’s duck,” in reference to St. Cuthbert, perhaps the first person to decree protections for birds.⁴ Legend holds that the seventh-century cleric of Great Britain’s Inner Farne Island developed a special bond with the eiders, forbidding the other monks to harm the nesting birds. While killing or eating Cuddy’s ducks would have been off limits, eiderdown “harvesting” could have been acceptable.⁵ Harvesting often involves collecting feathers from the nests while the birds are there, but the intent is to disturb the ducks as little as possible. In Scandinavian island communities, such practices had been going on for centuries prior to Cuthbert.⁶ They still continue today, with Iceland being the largest producer.^{7, 8}

The Downside

Unlike harvesting, other methods are far from innocuous. China is the world’s largest provider of down, mostly from ducks and geese, which are raised then slaughtered for food.⁹ Though feathers are considered a by-product of poultry production, disturbing accounts of live-plucking have been reported.¹⁰ The negative publicity has forced the fashion industry to reevaluate its suppliers and offer synthetic options.^{11, 12}

So what can we do to help out? Before purchasing a down jacket or bedding, investigate the manufacturers. As part of your Internet search, check whether they comply with the voluntary Responsible Down Standard (RDS). Note that the nonprofit Textile Exchange offers an online list of certified compliers and extensive information about the down industry.

The other choice, of course, is to just look for down alternatives.

Sources:

1. Thompson, M. “Everything You Need to Know About Feathers – Feather Anatomy: How Do Feathers Work?” Bird Academy, Cornell Lab of Ornithology: https://academy.allaboutbirds.org/feathers-article/2/.
2. Brakhage, D, St. James, E. “Waterfowl Feathers.” Ducks Unlimited: http://www.ducks.org/conservation/waterfowl-research-science/understanding-waterfowl-waterfowl-feathers.
3. “Down and Feather Quality.” Downmark, Canada: http://downmark.com/consumer_information/down_feather_quality.htm.
4. “St Cuthbert Provided Blueprint for Nature Conservation,” 6/30/2012. BBC: http://www.bbc.com/news/uk-england-23048394.
5. Jenkins, J. “St. Cuthbert’s Ducks,” 10/29/2015. Pilgrimage & England’s Cathedrals project: http://www.pilgrimageandcathedrals.ac.uk/blog/st-cuthbert%E2%80%99s-ducks-1446120484.
6. “World Heritage and the Arctic,” United Nations Organization for Education, Science and Culture (UNESCO): http://whc.unesco.org/archive/websites/arctic2008/annex.html.
7. Morris, J. “Iceland: Grail Trail,” 4/20/2002. The Telegraph: http://www.telegraph.co.uk/travel/destinations/europe/iceland/724009/Iceland-Grail-trail.html.
8. “Ask IR,” 1/30/2014. Iceland Review On Line: http://icelandreview.com/stuff/ask-ir/2011/11/10/can-you-tell-me-about-eiderdown-production-iceland?language=en.
9. Schmitz, H. The Sustainable and Humane Practices of the Down and Feather Industry. International Down and Feather Bureau: http://www.idfb.net/wp-content/uploads/2016/06/IDFB_White_Paper_6.07.16.pdf.
10. Gibson, K. “A Foul Truth behind the Down in Pillows and Comforters,” 5/26/2016. MoneyWatch, CBS: http://www.cbsnews.com/news/a-foul-truth-behind-the-down-in-pillows-and-comforters/.
11. Milman, O. “‘Ethical down’: Is the Lining of Your Winter Coat Nothing but Fluff?” 1/14/2016. The Guardian: https://www.theguardian.com/world/2016/jan/14/winter-coat-ethically-produced-down-goose-feathers.
12. Dobson, J. “The Growing Fashion Trend for Winter Travelers, Cruelty-Free, Vegan and Sustainable,” 12/19/2016. Forbes: http://www.forbes.com/sites/jimdobson/2016/12/19/the-growing-fashion-trend-for-winter-travelers-cruelty-free-vegan-and-fabulous/#6e9420a467cb.