MANY NESTING ACTIVITIES

Eastern Bluebird. The male observes the neighborhood in a nearby tree before he brings food to the nestlings.

There is a lot going on in the woods and the nest boxes around here. Hard to follow it all with equal attention.

The Eastern Bluebirds in the nest box have hatched a few days ago. I had a brief look into the box but wasn’t able to see how many nestlings came out of the five eggs because the nest is very deep. Time will tell. Both parents are feeding vigorously and bring caterpillars, spiders, little worms, and moths to their offspring every few minutes. I saw the male still catching insects tonight at 8:45PM . It’s a hungry bunch!

Female American Robin preparing a new nest

Yesterday a female American Robin was building a new nest in a tree just across from my office window. It might be even on top of a first nest that was most likely was built at the end of April already. With other words, they work on the second brood already. The female collected very quickly dried grass and other plant material and glued it together with wet dirt from underneath a bird bath. After dropping the grass in the nest the robin rigged it with her feet and it looked like she was trampling it in place. The male watched the surrounding area and chased everyone away that came close to the nest. I saw him a couple times going after the bluebird.

Male House Wren inspecting a nest box.

The tiny male House Wren still sings his heart out to attract a female to one of the nest boxes we provide for them since many years. Once in a while he inspects one of the nesting chambers and the photo was made when he came out of the hole. As I said before, hard to follow all nesting activities at this time of the year…

All images: Nikon Z6 III, Nikon NIKKOR Z 600 f/6.3 VR S, Nikon Z Teleconverter TC-1.4x, Induro GIT 404XL tripod, Induro GHB2 gimbal head,   @ 840mm,

NATURE CLICKS #606 - BOBOLINKS, READY FOR THE NESTING SEASON

Male Bobolink, Technology Park, Dubuque, Iowa

Bobolinks have one of the longest migration routes. They spend the winter in Bolivia, Paraguay, western Brazil, and northern Argentina. They breed in grassland habitats and it is important that the grass is not mowed during the breeding time. This happened unfortunately here in the Dubuque, Iowa area in one of the habitats in 2023, due to human ignorance. The Bobolink is one of the few songbirds that undergo two complete molts each year. After breeding the male changes to a more drab and camouflaged plumage.

I found at least 4 male Bobolinks today and saw briefly even a female in the grass of the Dubuque Technology Park. The Dubuque Audubon Society has worked with the city so that mowing in the undeveloped lots takes place only outside of the nesting season. Signs around these areas inform the public about this natural treasure. Other bird species can be present as well and toady I saw American Robins, an Eastern Meadowlark, Barn Swallows, Red-winged Blackbirds, and an Eastern Kingbird.

I made a number of shots while standing or kneeling at the edge of the grassland lots but the distance to the birds was a little bit too far for a pleasing photo. Later I parked the car with the driver side against the curb and shot both photos from my ”mobile blind”.

WARBLERS, GREAT SUBJECT FOR TESTING

American Redstart, Bankston County Park

Just back from a business trip I had the desire to go out and look for some wildlife yesterday evening . The steep and wooded river valley in Bankston County Park has been a good spot many times before and in the month of May there is often a good chance to get some warblers in front of the lens. Both species I found will probably breed in this area and there was a lot of calling going on.

It was the first time I didn’t bring the tripod and relied completely on my handholding capabilities and the amazing focus system of a new Nikon Z 6 III. It was very windy, even in the valley, and these little birds never seem to hold still, but I had a good number of sharp shots I could choose from for this blog post. I have used the new Z6 III since two weeks now and all I can say is, I’m very impressed with its focus system after extensive testing with the long lens and the teleconverter attached.

Nikon Z6 III, Nikon NIKKOR Z 600 f/6.3 VR S, Nikon Z TC-1.4x,   @ 840mm

Yellow Warbler, Bankston County Park area

ON GUARD

Eastern Bluebird, female

Eastern Bluebird, male

This was nine days ago and I knew there were at least five eggs in the bluebird nest box. It was a warm evening and even the female spent time away from the nest, certainly returning for the night later. Both parents were frequently perched in a tree that still had some gorgeous sunlight not far from the nest and they had always an eye on it. The bluebirds obviously avoided to draw attention to the location of the nest. This all made for a good photo opportunity with the long lens and the teleconverter attached, so the parents were not concerned about my presence in the backyard.

Nikon Z6 III, Nikon NIKKOR Z 600 f/6.3 VR S, Nikon Z TC-1.4x, Induro GIT 404XL tripod, Induro GHB2 gimbal head

MISSISSIPPI RIVER STORIES 2025 #4 - ON THE RIVER AGAIN

Spotted Sandpiper, Mississippi River, Mud Lake area

Yesterday morning I paddled into the main channel of the big river, following a Spotted Sandpiper that never seemed to stand still for a moment. The wind added some dynamic to the fast flowing water. I didn’t expect that the vegetation and probably some algae along the shore had such an impact on the colors reflected from the surface of the river, giving it a warm touch. Of course, I take that for a photo that is a little different…

Nikon Z6II, Nikon NIKKOR Z 600 f/6.3 VR S,    @ 600mm, 1/1250s, f/9, ISO 1000, image slightly cropped

NATURE CLICKS #605 - BALTIMORE ORIOLES

Nikon Z6 III, Nikon NIKKOR Z 600 f/6.3 VR S, Nikon Z Teleconverter TC-1.4x.   @840 mm, 1/1000 s, f/9, ISO 1250

At least a dozen orioles are frequent visitors in our yard since a few days. We have orange halves out there as a food source and they pull the fruit pulp out of them, although it seems they like the also provided grape jelly even better.

Nikon Z6 III, Nikon NIKKOR Z 600 f/6.3 VR S, Nikon Z Teleconverter TC-1.4x.   @840 mm, 1/1600 s, f/9, ISO 1250

RISKY PLEASURE

We made another paddle trip by kayak in the Mud Lake area on the Mississippi River yesterday evening. The water level of the big river was a little bit higher than two days earlier and as a result I saw only one sandpiper. But there is always something to find in this ever changing ecosystem of the Upper Mississippi Valley. Before we even saw them we heard the incredible noise from dozens of American Toads that had started their mating  time.

Having probably only one thing in mind some of the frogs didn’t pay the attention to their environment they should have. While I still tried to find the best position with my kayak, two Northern Water Snakes took advantage of the frogs desire for some pleasure and their drive to mate and snatched them off from the driftwood logs in the mud. One snake disappeared immediately in the water and made it to land quickly. The other one slipped over the log quickly and all what I got in my picture is the head of the snake and the legs of the toad sticking out of its mouth.

Well, this didn’t stop all the other males to continue to attract the females with their loud high-pitched trill. They produce their characteristic calls by using a combination of their lungs, vocal cords, and a vocal sac to amplify the sound.

Good time, good times!

All photos: Nikon Z6II, Nikon NIKKOR Z 600 f/6.3 VR S

NATURE CLICKS #604 - A SECRETIVE RAIL, THE SORA

Sora, Mississippi River, Mud Lake, Iowa

Shooting from a kayak leads to perspectives that are otherwise hard to obtain. I have photographed the very secretive Soras before from land and it seems they always disappear behind some reeds or bushes when you have them in the viewfinder. It can drive you crazy. However, the Sora is the most widespread and abundant rail in North America. While they search for food and move along the shore it is often hard to follow them. Being on the seaside in a boat makes it a lot more visible where they might go next and allows to predict a good opportunity for a shot a little bit ahead of time.

Soras rake often floating vegetation in the water with their feet or use their bill to move plant material and find insects, mollusks, snails, seeds or aquatic invertebrates. Yesterday I found three of these very beautiful rails in the backwaters of Mud Lake. The one in the picture below took actually a bath and frolicked in the shallow water for several minutes. What a show!

NATURE CLICKS #603 - DUNLINS ON THEIR WAY TO THE ARCTIC

Dunlins, Mississippi River, Mud Lake, Iowa

I really wanted to go back to the Mississippi River this afternoon and try to shoot from the kayak again. It was a good idea since I saw birds we haven’t spotted yesterday. The highlight were two Dunlins in full breeding plumage, who were definitely on their journey from the cost of the Gulf of Mexico or Florida to the arctic coast in Canada. This is a bird easy to identify with their black belly patch. They didn’t pay too much attention to my presence and didn’t stop to probe and jab in the shallow water or mud along the shore at Mud Lake on the Mississippi River. I have seen them a few times at the Green Island Wetlands further south during recent years, but always very far away. Today I finally had a real photo opportunity here in Iowa for the first time and I had a hard time to decide which photo to post here in the blog.

Nikon Z6II, Nikon NIKKOR Z 600 f/6.3 VR S

MISSISSIPPI RIVER STORIES 2025 #3 - OPENING THE SEASON

After taking many pictures of Greater Yellowlegs during this spring season I finally found a Lesser Yellowleg within the reach of the lens.

Today we used the nice weather with mild temperatures and sun and opened the paddle season. The kayaks were launched on the Mississippi River in the backwaters of Mud Lake, only a few minutes away from home. What was supposed to be a short trip became an all afternoon journey with lots of wildlife encounters. I have written here before how much I love to shoot from the kayak because of the ability to have the lens real low above the water, much better than driving by car on top of a dyke. Beside the usual suspects, like egrets, herons, geese, ducks, pelicans, and muskrats, we watched three different sandpiper species, a number of eagles, and even heard the Sandhill Cranes in the reeds.

All images: Nikon Z6II, Nikon NIKKOR Z 600 f/6.3 VR S

Many Painted Turtles had climbed on driftwood logs and used the sun to warm up after a long winter season.

This adult Bald Eagle had just eaten something, probably a fish, and didn’t seem to be bothered by me drifting by with my kayak. Six or seven other eagles were nearby, maybe hoping to pick up some leftovers.

If this Solitary Sandpiper plans still to reach the breeding grounds in the northland regions of Canada, it better gets on its way for the rest of the long distance. They spend the winters from central Mexico to South America.

NATURE CLICKS #602 - WHITE-CROWNED SPARROW

White-crowned Sparrow, Ophir Beach, Oregon, Apr 11, 2025

White-crowned Sparrows are not seen very often here in the Little Maquoketa Valley in eastern Iowa. They spend the winter in the states south of here and have their breeding grounds high up in Canada and Alaska. With other words, we are migration territory. The photo below was shot a couple days ago and the bird spent a few minutes on a small tree in our yard. During our recent trip to Oregon we saw White-crowned Sparrows in abundance. At the coast they are present year-round.

At both occasions I tried to make an environmental portrait. Giving the picture a sense of place or season is my preferred way to photograph wildlife. Including the ocean and the surf in the background let us know that the sparrow was perched right behind the beach. The second photo is totally different. The bird was hiding in a dense tree with lots of little branches and that could be anywhere. No chance to have such a clean background as on Ophir Beach. But the buds had just opened and small leaves showed their fresh green, telling the story about spring migration of the White-crowned Sparrow.

Both photos: Nikon Z6II, Nikon NIKKOR Z 600 f/6.3 VR S, Nikon Z Teleconverter TC-1.4x, @840 mm

White-crowned Sparrow, Little Maquoketa, Valley, eastern Iowa, May 1, 2025

SHORT SPRING BIRD REPORT

Baltimore Oriole, This male arrived yesterday, 4/29/2025. They spend the winter either in Florida, along the southern Atlantic coast, or in southern Mexico.

What’s going on in our woods here? It’s the most exciting time of the year with the arrival of many bird species from the south. All photos were made during the last seven days, except for one, which is from the last week in April 2024. Beside what I can present today, other birds showed up as well, like the Ruby-throated Hummingbird, White-throated Sparrow, or the Eastern Whip-poor-will, but not every sighting or sound in the woods leads to a photo. I also like to include in my little bird report some local residents because mating and preparation for nesting puts a spin on their behavior as well. I hope you enjoy today’s images!

Baltimore Oriole, The first female followed today, 4/30/2025

House Wren, Usually they are the first bird that arrives after the winter, 4/18/2025, Several males sing their heart out from early morning until late evening, but the females are still not here yet.

Chipping Sparrow, They arrived from the south a day after the House Wren, 4/19/2025, and a pair is feeding together on the ground since. Their fast-pulsing song is always a sure sign of spring for me. I didn’t get a decent shot so far but present an image that was made last year, 4/28/2024.

American Robin, While many people celebrate their arrival in early spring, we have seen them here in our woods occasionally during the winter. This female had obviously an early start and was collecting already nest material in the front yard

Female American Goldfinch, By a complete molt of their body feathers goldfinches change from winter plumage to breeding plumage in spring. It is the only finch species that have this second molt. This female had obviously still a few feathers of its winter dress left.

Brown-headed Cowbird, This pair showed up 4/24/2025 and visited one of our feeders several times since. Nobody really wants to see them because they are brood parasites and deposit their eggs in nests that belong to other bird species. They typically hatch earlier than their host’s eggs, which gives them an advantage over the other hatchlings.

Male American Goldfinch, He is done molting and looks gorgeous in his breeding plumage. The previously mentioned Brown-headed Cowbird may lay an egg in a goldfinch nest, but the hatchling may die because the seed-based diet provided by the parents cannot support the cowbird.

Male Rose-breasted Grosbeak, Several male birds arrived 4/25/2025 and refuel with sunflower seeds after their long journey from Central or maybe even South America. The first two females followed yesterday.

NATURE CLICKS #601 - CALIFORNIA QUAIL (FIRST SIGHTING)

California Quail, Arizona Beach area, Oregon

The California Quail was a lifer for me. Several males and females moved quickly through the grass while feeding near Arizona Beach at the Oregon Coast. The topknot above the head of this male looks like a single feather, but it is actually a cluster of six overlapping plumes. (source: iBird Pro App)

This is such a pretty bird but unfortunately we watched them only for a few minutes until they disappeared between the thick underbrush again.

Nikon Z6II, Nikon NIKKOR Z 600 f/6.3 VR S

Female California Quail

THE SLIGHT DIFFERENCE

Bald Eagle, Cape Arago State Park, Oregon

Making a photo of a Bald Eagle here in the Upper Mississippi Valley isn’t really such a difficult task anymore. This species was delisted from the endangered species list in 2007 after a remarkable population recovery due to conservation efforts like habitat preservation and captive breeding programs. At or near the Mississippi River or even at many tributary rivers you most likely can see them. When they perch you may find them in a dead tree or on a branch in a deciduous tree. During our recent trip to the Pacific Northwest I wanted a different shot, a Bald Eagle perched in a coniferous tree. Their population is not as dense as here in eastern Iowa, but I finally found a bird that would become part of my story telling. We don’t have really many conifers where an eagle could perch but at the Oregon coast I found the difference I was looking for.

Nikon Z6II, Nikon NIKKOR Z 600 f/6.3 VR S, Nikon Z Teleconverter TC-1.4x, Induro GIT 404XL tripod, Induro GHB2 gimbal head,    @ 840mm, 1/2000s, f/9, ISO 400, image slightly cropped,

NATURE CLICKS #600 - PINE WARBLER (FIRST SIGHTING)

Pine Warbler, Little Maquoketa Valley, eastern Iowa

”Nature Clicks #600” had to be a special one and mother nature didn’t disappoint this time again. I’m very happy to present today my first sighting of a Pine Warbler. It was shot through the dirty glass at my office window. Suet sprinkles from the nearby feeder haven’t been removed yet and the time I spent in post process to clean this photo reminded me that spring cleaning should start sometime… 🙄

I saw the bird already briefly a day before (April 18th), hoping it would come back again, and had the camera on my desk with just the 24-70 lens attached the next day. I shot this at 70 mm in horizontal orientation due to the position of the log on top of the bird feeder but cropped the photo vertical at the end.

Pine Warblers spend the winter in the southern states and as the name suggests they prefer pine forests, which we don’t really have here in eastern Iowa.