Breeding American Avocets

Spring is in the air, and so is the reproductive instinct of many local bird species. I had the opportunity recently to photograph an American avocet pair copulating, and was able to record the interesting mating dance that occurred immediately afterward. Remaining monogamous throughout the breeding season, this pair will soon likely select a local nest site, or migrate north to nest (avocets are both migratory and year-round residents of the SF bay area).

The female avocet signals that she's ready to receive the male by standing with her head close to the water with the beak straight out in front
The female avocet signals that she's ready to receive the male by standing with her head close to the water with the beak straight out in front. Canon 800mm f/5.6L IS lens with the EOS-7D. ISO 400. Evaluative metering +1: 1/800 sec. at f/8

As they begin, the female signals to the male that she’s ready by standing alert with her head low and forward, close to the water. The male stands next to his mate, or directly behind her.

The male avocet mounts the female from behind. The act of copulation lasts only a few seconds.
The male avocet mounts the female from behind. The act of copulation lasts only a few seconds. Canon 800mm f/5.6L IS lens with the EOS-7D. ISO 400. Evaluative metering +1: 1/800 sec. at f/8

In one quick motion, the males jumps up onto the female’s back. Breeding only lasts a few seconds, during which time the male flaps his wings repeatedly. Just as quickly, he jumps down again.

Immediately after copulation, the avocets cross beaks. Holding them in this position, they walk in a tight circle two or three times.
Immediately after copulation, the avocets cross beaks. Holding them in this position, they walk in a tight circle two or three times. Canon 800mm f/5.6L IS lens with the EOS-7D. ISO 400. Evaluative metering +1: 1/640 sec. at f/8

Immediately after copulation, the avocets turn toward each other and cross beaks. Each bill rests against the other’s neck, with the male standing slightly taller than the female. Holding this position, they walk in several tight circles.

Soon after the avocet pair copulates, they promenade side-by-side in a straight line
Soon after the avocet pair copulates, they promenade side-by-side in a straight line. Canon 800mm f/5.6L IS lens with the EOS-7D. ISO 400. Evaluative metering +1: 1/800 sec. at f/8

Once the circles are completed, they march off together side-by-side. I always find it fascinating to watch these intricate rituals that have developed over thousands of years.

Rising out of the water, an american avocet flaps its wings to dry them off.
Rising out of the water, an american avocet flaps its wings in the air. Canon 800mm f/5.6L IS lens with the EOS-7D. ISO 400. Evaluative metering +1/3: 1/1600 sec. at f/7.1

Happy Valentine’s Day!

An American avocet pair gather nest building material
An american avocet pair gather nest building material. Canon 800mm f/5.6L IS lens with the EOS-40D. ISO 200. Evaluative metering -1: 1/640 sec. at f/8

May you and your loved ones have a happy Valentine’s Day.

I’d like to wish my Valentine and beautiful wife of 7 years, Kerry, a very special day. Thank you for all of your love and support in everything that I do! I love you.

Spring babies – bring on the cuteness

A young american avocet chick wades in shallow water looking for food

I was fortunate this spring to get out and capture a few different species of new hatch-lings. It was wonderful to watch these brand new birds explore around their nests. The image above is an american avocet chick, while the image below is a black-necked stilt chick. While these chicks look very similar within the first few weeks of their lives, they soon begin to develop characteristics of the very different looking adult species.

A black-necked stilt chick is reflected in shallow water, Baylands, Palo Alto, California

While the avocet and stilt chicks tend to stay very close to water, canada goose chicks spend most of their time on land, feeding off of grass. The gosling below was one of five siblings, all feeding amongst short grass, very close to their parents. If anyone approaches too closely, the geese will corral their chicks and surround them, hissing a warning at the offender (which is why I always stayed a good distance away).

A Canada Gossling grazes in the short grass. He stops periodically to peer about.

The last species I covered this spring is the ever-present mallard duckling. I followed a family with four chicks for a few days, watching the mother keep her chicks hidden in the tall grass next to a pond, while the father warded off any other water foul that ventured too close. Here is the mother with one of her chicks, just after preening.

A mallard hen preens with her chick in the grass next to a slough

The flash gallery below features more images of these very cute newborns. Please enjoy them, share it with friends, or click through to the spring babies gallery on my photo site. I hope you enjoy watching as much as I enjoyed capturing them.

American Avocet Portrait (Photo of the week)

A nesting american avocet peeks above the pickle weed

This american avocet was sitting on her nest, hidden in pickle weed along the bank of a shallow slough. Avocet nests are fairly unimpressive – they are usually just a small scrape along the ground, sometimes lined with grass. Sometime avocet females will lay their eggs in other avocet nests – or even the nests of other species. Likewise, other species (usually black-necked stilts) have been known to lay their eggs in active avocet nests. The avocet female that tends the nest will raise the stilt chicks as if they were her own.

Copyright 2017 Hank Christensen