NATURE CLICKS #371 - BLACK-NECKED STILT


Black-necked Stilt, San Joaquin Wildlife Sanctuary, Irvine, California ----------

Hard to believe that it was already a week ago when I visited the San Joaquin Wildlife Sanctuary in Irvine, California. It was very exciting to see and watch many birds that we don’t see here in Iowa. One of them is the Black-necked Stilt, who feeds in salt and fresh water. I first saw them a few years ago in the Great Salt Lake, Utah, than last week again in the salty water of the Pacific Ocean at the Bolsa Chica laguna, and finally in the fresh water ponds at the San Joaquin Wildlife Sanctuary. Their legs are extremely long in proportion to their body, only exceeded by flamingos. This stilt feeds on tadpoles, mollusks, aquatic insects, snails, flying insects, seeds, and even small fish (source: iBird Pro App).

The photo was made with the Sigma 1.4 tele extender attached to the Sigma 150-600 lens and camera was set to DX crop mode. This is the equivalent to an angle of view of a 1275 mm lens. This shows the bird a lot closer but handling this focal length, even on a tripod with gimbal head, is not an easy task. This combination is unforgiving when you make the slightest mistake while focussing on a moving subject. The Black-necked Stilt has some good contrast in its feathers and therefor it is a great shore bird to practice with a long lens.

MISSISSIPPI RIVER STORIES 2015 #10


Tundra Swans, Harper's Slough, Mississippi River, Iowa

I like to interrupt my series about our trip to North and South Dakota for a more actual story from right here, the Mississippi Valley. Yesterday, and again today, I drove up north along the mighty Mississippi River in search for migrating water fowl. North of Harper's Ferry, near lock and dam #9, I found what I was looking for. The area is closed to all migratory bird hunting and the birds obviously have figured that out. What I found was overwhelming and I was stunned by the numbers I saw. Several hundred Tundra Swans were present, maybe even close to one thousand. Beside them ten thousands of ducks and coots covered the Mississippi. There was no way to even just guess the numbers. The river is about two miles (3 km) wide at this point and the sanctuary stretches almost all the way across and is about 4 miles long. More than a dozen Bald Eagles were sitting in trees or messed with the ducks. The sound of all the ducks and swans was incredible and the distinctive call of the eagles was music for my ears. With certainty I identified Green-winged Teals, Northern Shovelers, Mallards, Northern Pintails, American Coots, Gadwalls, and a single Wood Duck. There were maybe other species further out on the river but even with my binoculars I couldn’t see them clearly. The Tundra Swans have quite a journey behind them already. Their breeding grounds are high up in Alaska and far northern Canada. They are easy to separate from the Trumpeter Swans, who breed here in Iowa, by a small yellow spot on the base of their black bill.

Ten thousands of ducks during migration

The tip where to look for ducks came actually from a couple local duck hunters, who just came back from a hunt and pulled their boat out of the river in Harper's Ferry. They claimed that we haven’t seen the peak of the migration yet because of the mild weather. After I outed myself as a photographer they were very helpful and gave me a good description how to get to the sanctuary.

Bald Eagle

The photo of the Bald Eagle was probably the easiest to make. The low afternoon sun lit the bird just right. The high contrast between the white of the Tundra Swans and the darker colors of the ducks were quite a challenge. Exposing strictly for the highlights was the only way to go for these documentary shots.