Thursday, April 19, 2012

Fuss and Feathers — Day Length, Molting, and Egg Production in a Small Flock

We are nearly two years into raising our Flock-of-Four: Amelia (Barred Plymouth Rock), Ruby (Rhode Island Red), and Buffy & Dixie (Buff Orpingtons). Hatched in May 2010, they spent their first summer as pullets in the Eglu® which we moved around the backyard, shifting its position every day as the birds scratched up the lawn. We were amazed at how quickly they grew from fuzz-balls into handsome birds with distinctive plumage.

 Buffy, Ruby and Dixie.

As they were nearing six months, we moved them into our garage to provide them greater protection from the New England winter, putting the Eglu® on a tarp covered with a 3-inch layer of hay, which we changed weekly (photo). We added a light to give them 14-hour artificial day-length to encourage egg production. That turned out to be quite a winter in New England! With record snowfall outside, the Flock-of-Four, cozy in the garage, averaged over 2 dozen eggs per week. We figured the abundance of fresh eggs more than made up for shoveling out the car that no longer fit in the garage.

 We moved the girls into the garage for the winter months.

The ease of keeping the Eglu® in the garage vs. moving it daily onto fresh grass led us to leave it in the garage permanently. We let the hens (now the “garage girls”) out each day to free-range the property and they always returned to the coop at dusk and also during the day to lay their eggs or to drink water and consume the feed that we provided.

Molting Begins

As summer gave way to autumn with its shorter day lengths, we decided not to add artificial light and to see what happened with a natural daylight cycle. It didn’t take long to find out. One morning in mid-October it looked like a poultry crime scene in the coop. Golden-tan feathers everywhere, yet all of the flock was present, strutting about and making their customary morning clucking sounds. What happened was Buffy had abruptly started to molt. Feathers were falling out by the handful and her comb and wattles were distinctly paler than the week before. She was a rather bedraggled version of the elegant Buff Orpington she had previously been. For the next month of molting her egg production declined to less than half of what it had been, and continued to be vastly reduced through the winter, even after she had regained her full plumage by mid-December. By then Dixie, the other Buff Orpington, started her molt. Through the molting the combined egg production of Buffy and Dixie was an egg or so per week, but picked up to an egg or two per day with the advent of spring.

Ruby molted in March — her feathers were all over!

Not until March did Ruby, the RI Red, begin to molt, her red feathers flying all over the place with the March winds (photo). Up until then our best layer, she abruptly went on strike and for three weeks didn’t lay a single egg. During that time of non-laying, her newly bare patches grew pinfeathers with shafts that looked like quills (photo) which then erupted from the tips, blooming into new feathers that looked like little paintbrushes (photo). As her feathers returned, so did Ruby’s egg laying. Her first effort was an egg, that while larger than the eggs she had been laying before, was lighter in color and distinctly two-toned (photo). Happily, her laying then quickly returned to champion status.

Ruby's newly bare patches grew
pinfeathers with shafts that looked like quills.

Ruby's pinfeathers then bloomed into new
feathers that looked like little paintbrushes.

Once Ruby's feathers returned, so did her egg-laying.
Her eggs were larger than before and distinctly two-toned.

So, what about Amelia, the Barred Plymouth Rock? Usually chickens molt in the autumn in response to shortening day-length. But even without artificial light, at 22 months, she has not yet had an abrupt molting event. Every once in a while we notice a black-and-white feather floating around, but we can’t tell whether she has been slowly molting, or will molt abruptly later this spring, or is skipping the process all together. She remains one of our most productive layers. We’ve appreciated that each of the Garage Girls has had a different schedule for renewing their feathers since we’ve had a constant supply of delicious eggs all winter!

— Pam Art, Storey Publishing President & Publisher

Post was written for Mother Earth News. See original posting here

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