Friday, June 16, 2017

Northern Cardinal, Molt

This female Northern Cardinal is looking sort of shabby right now, but she'll soon be back in top-flight shape.

She is molting, as her head feathers are being replace with fresh new ones. Most eastern songbirds go through molts. Feathers wear out, fade and fray. They must be replaced periodically. This usually happens after the young have fledged, but before the next migration.

All birds go through molts... from hummingbirds to penguins. A bird without feathers is really vulnerable, so we rarely see molting birds. They tend to hide until they are once again fully dressed.

This male Northern Cardinal is looking well suited at present, but his time to molt will come, too.

(Click any picture to enlarge.)

Some birds go through a full molt, losing all their feathers at once and some go through two molts a year. It depends on the species.

Being without your warm coat of feathers may have and upside during the hot steamy dog-days of summer. It may just be the right time go naked.

Credit: Cornell Lab of Ornithology, All About Birds

Monday, June 12, 2017

Barn Swallow

Following Barn Swallows in flight is a head-bobbing, neck-swiveling, and frustrating task.

With rapid wing beats plus darting and diving, they scoop up airborne insects.

In tawny soft shades of white and rusty orange, these beautifully outlined birds put on a high speed precision flying show for your entertainment.

Weighing in at 0.7 ounce he's mostly wings and tail.  With his quizzically rounded head and not much of a neck, he still manages to attract a mate.

This pair has taken over a spot on the Horicon Marsh Visitor Center.

Before there were buildings for Barn Swallows to co-opt, they lived in caves.

Nowadays they live on manmade structures almost exclusively... barns, bridges, sheds, etc.

A cobalt blue head is the Barn Swallow's crowning feature. If you're patient, one might oblige you with a full frontal portrait and allow you the necessary time to take him all in.

Credit: Cornell Lab of Ornithology, All About Birds