NATURE CLICKS #497 - BURROWING OWL

Burrowing Owl, Badlands National Park, South Dakota

I was writing recently about the bison in Badlands National Park here in the blog but other species have been on my radar as well. The Burrowing Owl is always among them, and I can tell you, it’s not a bird you may find easily. It is a small, long legged owl that is active during the day, while most other owls are nocturnal. They nest in underground burrows, and in Badlands National Park it is most of the time a den in a prairie dog town. It took us more than ten years to find this owl in the wild and after our first encounter in 2018 I was very happy to find two new, but different locations during my visit a week ago. An abundant burrow isn’t easy to spot among all the active dens populated by thousands of prairie dogs but as soon I see a bird flying somewhere low to the ground, I have the binoculars up. The Burrowing Owl feeds on larger arthropods, but also on birds and small mammals, like mice, small rabbits, ground squirrels, and others.

OUT WEST #4

Burrowing Owl, Badlands National Park, South Dakota

It wasn’t until we left Badlands National Park that a long held dream became true. We stopped at the west entrance on Sage Creek Road because Joan wanted to take a picture of the National Park sign, and so did I. This entrance is not used by many visitors, there isn’t even a fee station, and traffic on this gravel road is very low.

Suddenly I saw a bird sitting on a post that marks and holds the border fence. We both couldn’t hide our excitement when we saw through the binoculars that this was a Burrowing Owl. We have tried to find this species since a long time in the Badlands and if we wouldn’t have stopped we would have missed it. This small ground-dwelling owl builds their nest in a burrow, either dug by the owl or been abandoned by ground squirrels or other small mammals. In the Badlands they find their housing mostly in the burrows of prairie dogs, who are literally their next door neighbors. It turned out that we finally saw at least five different owls. They often hunt from a perch, like this bison-proof fence post, and glide silently towards their target, which can be arthropods, mice, birds, gophers, ground squirrels, bats, reptiles, or amphibians. Burrowing Owls are most active at dusk and dawn but will hunt any time during day or night. (source: iBird PRO app)

They migrate to Texas for the winter and when we came back two weeks later for another visit at the end of our “OUT WEST” trip, they were all gone.

OWL AT SUNSET

Barred Owl, Little Maquoketa River Valley, Iowa ------------

Joan and I sat down with a glass of wine on our porch this evening when suddenly one of our Barred Owls flew across the front yard very low, went up again, and landed in a tree nearby. The camera was waiting, ready to shoot, near the door and within a few seconds I had the bird in my viewfinder. We have seen the pair of owls every evening during the last few days. Sometimes it was too late for even thinking about a picture but today we had the best light so far. It is an exciting story for us, although we still don’t know for sure about their offspring and where the nest is located. We just guess it is very close…

IT TOOK ME 11 YEARS!

Barred Owl -----------

I bought my first digital SLR camera almost exactly 11 years ago. It took me that long to make some photos of a Barred Owl. It was sitting in one of the oaks at the edge of our woods this evening. This owl nests here every year and we can hear their distinctive call “Who, cooks, for-you, who, cooks, for-you, all” every night and sometimes even during the day. You can’t imagine how happy I am to have finally some images of this mostly nocturnal bird. I still haven’t figured out where the nest of the owl is, I just know it is very close. Last night, right after the bird had called again, I could hear some pitched noise just from outside my office window, obviously from a young bird. Actually I had another story and photos for you from today, not even less exciting, but the joy about this accomplishment prevailed.

Friends who follow my blog regularly know that I usually don’t set the ISO in camera higher than 200, and it is very rare that I exceed ISO 400. The noise reduction that is required with higher ISO in dim light comes with the loss of detail, and I believe detail is important for bird photography. Today was such an exception. I didn’t want to risk ending up with blurry photos only and so I dialed in ISO 800. The exposure was still as low as 1/125s, actually too slow for handholding at 600 mm focal length, but I guess turning on the VR (vibration reduction) helped to walk away with some pictures in focus.

Nikon D750, Sigma 150-600mm / f5-6.3 DG OS HSM S, @ 600 mm, 1/125s, f/6.3, ISO 800

 

NATURE CLICKS #391 - SHORT-EARED OWL (FIRST SIGHTING)

Nikon D750, Sigma 150-600mm / f5-6.3 DG OS HSM Sports Lens, @ 600 mm, 1/125 s, f/6.3, ISO 800, photo is cropped,  ------------   

It was about time for me to get back into the Green Island Wetlands this evening. Beside the “regulars”, like Canada Geese, Bald Eagles, American White Pelicans, Sandhill Cranes (10), Mallards, lots of Red-winged Blackbirds, and the Northern Harrier, I watched the first pair of Wood Ducks this year. I also met my photography friend Kevin, who is the one who convinced me to join the Dubuque Camera Club last fall, and we shared our recent observations, discussed locations, and of course photography. As the sun went down and we said good bye, Kevin discovered this owl sitting in the top of a tree at the edge of the wetland area. First I thought it was a Barred Owl. We have them around our house and can hear their distinctive calls every night really close, but since they are mostly active at night we hardly see them and so I’m not so familiar how they look in detail. A closer look into the books at home revealed that this is a Short-eared Owl. The yellow eyes and the black triangle around each eye made that clear. Barred Owls have dark eyes and a different plumage.

This is a first sighting for me and even if the photo is cropped and a little noisy I’m very happy. I rather crop the image and keep a safe distance to an owl instead of moving in and become a threat. The safety and comfort for the bird come always first.

FIVE RAPTORS

CYSCO, Harris’s Hawk, hatched in captivity in 1994, excelled as a falconry bird, and came to the Schlitz Audubon Center after retirement. ------------ 

It was fun at the 30th Annual Bald Eagle Watch in the Grand River Center of Dubuque yesterday. The event that celebrates the American Bald Eagle had a very good turnout with people of all ages. We had lots of good conversations with visitors at the information desk of the Dubuque Camera Club and the other participating organizations have been very busy as well. The highlight for many guests was without any doubt the live bird program, presented several times during the day by staff and volunteers of the Schlitz Audubon Nature Center, Milwaukee WI. The program was great education, not just for all the kids who got involved by Sara, who did a very good job of moderating it.

BARON VON SCREECH, Eastern Screech Owl, lost his right eye in a car accident.

It was allowed to take pictures, even with flash lights, but I decided to use just the ambient light for making some images of the raptors and the people who showed them to the audience. All photos were made handheld at f/4 between 1/20s and 1/40s. The ISO was cranked up to 1600. Shooting indoors is not my usual thing to do and dealing with white balance in very dim incandescent light had its challenges. The presenters moved around to give everybody a chance to have a close-up view of these beautiful raptors and the birds themselves move as well, with other words, not an easy task to get a sharp image.

CUTRIGHT, Peregrine Falcon, a retired falconry bird.

All seven birds of prey that were introduced to the audience (I only show five of them) are unable to make a living out in the wild for various reasons. Since I didn’t make notes (too busy fiddling with the camera 😉), the information about each bird under the photos is from the website of the Schlitz Audubon Nature Center. https://www.schlitzaudubon.org/education/raptor-program

TSKILI, Great Horned Owl, was stolen from her nest by a human who wanted her as a pet.

VALKYRIE, Bald Eagle, Was left by her parents earlier than normal. She did not have the hunting skills to survive in the wild. I like this photo because it shows the enormous size of an eagle, next to Sara, the main presenter of the program.

All images: Nikon D750, Nikon Nikkor AF-S 70-200mm, f/4G ED VR

NOT LITTLE ANYMORE

Juvenile Great Horned Owl, Mississippi River, Mud Lake, Iowa ---------    

I made an early visit to Mud Lake this morning and came back with nothing. Looking for the branchling between all the leaves is like searching a needle in a hay stack. My photography friend Linda went later in the day to the same place and spotted the owlet successfully. I finally went back in the afternoon and found the young Great Horned Owl sitting on a branch in a large cluster of maple trees, the same spot Linda had described in an email to me. I’m very thankful to her for sending me the message.

I guess we shouldn’t call the owlet “little” anymore. It’s hard to believe it was only 37 days between the photos from today and my first shot of the young bird in the picture below. The click above was made when the bird turned its head and had an eye on our little dog Cooper, who sat quietly in the grass below. Maybe there were some thoughts about a future meal… Looking at its big claws leaves me without any doubts that this owl will be a great predator.

First sighting, March 28, 2017 (image cropped)

UPDATE ON THE GREAT HORNED OWL

March 21, 2017  -------   

I have been several times at the nest of the Great Horned Owl at Mud Lake last week. As the two photos show the conditions can be very different from one day to the next.

Five days ago, March 21, great late afternoon light hit the nest. Mother owl didn’t change position at all. I recognized a ball of gray-black feathers on the right. This is probably the remains of some prey, possibly an American Coot, that she or the male owl had bagged.

March 26, 2017

This image is from today, March 26, 2017. The rain had just stopped and the owl still looks quite wet. She sits very high in the nest and that makes me believe that her offspring has hatched already some time ago. Here is a time table of my first sightings of an owlet at the same nest for each year:

2016: March 28, a second owlet March 31

2015: March 16

2014: March 28

2013: April 14

It looks like we may see some new life soon. I will try to visit the nest more frequently during the upcoming week.

Both photos were made with the Sigma 150-600, at 600 mm in DX-crop mode of the Nikon D750. This is the equivalent viewing angle of a 900 mm lens. I use the DX mode if I can’t go physically closer to my subject.

UPDATE ON THE OWLETS

600 mm, 1/100s, f/6.3, ISO 320, flash fill

I know I have some friends out there, and as far away as South Africa, who like to hear about how our little owlets are doing. The weather has been kinda “crappy” during the last few days but I try to drive down to the Mississippi River after work several times a week in order to see how the young Great Horned Owls develop. For those who do not always read my blog, this is the first time during the last four years that the Great Horned Owl is raising two young owls. Any other year before was only one owlet in the nest.

Today it seemed again that the juveniles are in good condition and there was a brief moment when I saw both of them at the same time. The mother perched in trees nearby most of the time. She was at the nest only once while I was there. Mother owl went always back to the same trees and branches during the last week because she probably can observe the nest very good from all of her preferred spots. She must trust me, because she turns quite often her back to me and rather looks over to the Mississippi and perhaps watches for some prey.

600 mm, 1/100s, f/6.3, ISO 320, flash fill

Rain and dark clouds during the last evenings made the photography very challenging. There wasn’t an ounce, and not even a gram of nice light! In these conditions I like to master flash fill for my images, with all its quirks, like overexposed branches, red eyes, or just dealing with the settings in camera and in the flash. The missing contrast on an owlet’s head or body in low light makes it difficult to obtain always focus for a sharp image and not every picture is a keeper. I know, this doesn’t sound like fun but I really enjoy the process of trial, error, and improvement, and it makes me happy if at the end of the day there is an image on the memory card that tells the story…

NATURE CLICKS #324 - GREAT HORNED OWL

Nikon D750, Sigma 150-600mm / f5-6.3 DG OS HSM Sports Lens, tripod, gimbal head

Yesterday evening I was greeted by a chirpy little owlet, sitting at the edge of the big nest, down at the Mississippi River at Mud Lake Park. I quickly set up my tripod and watched the bird through the SIGMA 150-600mm / f4.5-6.3 APO DG HSM, zoomed out to its longest focal length. For a while I thought there was a second owlet in the nest, but after looking closer at my pictures on the screen of the NIKON D750 I found out that mother owl just “took a nap” deep down in the nest, while the juvenile enjoyed the sun. What a great moment when she finally went up and left no doubt about who is in charge. I’m so happy to see that we have for the fourth year in a row the pleasure of watching a Great Horned Owl raising her offspring.

HIGH UP IN THE TREES (TWO STORIES)

After an overall gray day the sun came out this evening for a brief moment. Luckily this happened when I checked the nest of the Great Horned Owl again today. Not much new to report. I saw the upper part of the head of one little owlet, but haven’t seen the face yet. My photography friend Linda from Dubuque sent me an email today, basically confirming the same observations. It looks like we have one young owl in the nest again, the same as during the last couple years. But what do we know? Since we can’t peek into the nest we may still have a surprise waiting for us...

Male Wood Duck

The second image was shot this morning during some light rain from my office window and has not much to do with decent photography. I made it mainly more for my own documentary. Every spring, and only in spring, we see and hear migrating Wood Ducks resting in the oak and hickory trees that surround us here on the bluffs above the Little Maquoketa River Valley. There was actually a female duck sitting not far from this male, but as you can see by the blurry parts in the foreground, lots of branches obstructed a clear view. The bird is further away as it seems. I have cropped the picture a little bit. Nothing for the purists among you today, but since my blog has always been about both, photography and nature, I still like to share today’s observations with you...

THIRD YEAR IN A ROW

Today I don’t have an eye pleasing photo but it is, at least for me, an important documentary shot. The image is already a week old and shows that a Great Horned Owl is sitting on the abandoned eagle’s nest again, now for the third year in a row. In 2013 and 2014 the owls raised one juvenile each year and I was lucky enough to be there with my camera several times. If you like to see some of the pictures from the past, type “Great Horned Owl” into the search field at the sidebar on the left,  and all links to my older blog posts that talk about the owls will pop up immediately.

For now we can just wait and see how things turn out. The eggs are incubated for 28 to 35 days, mostly by the female. The Great Horned Owl lays between one and five eggs. 

My records show that last year we saw the owlet not before March 23 for the first time peeking out of the nest. I will check out the nest down at the Mississippi River again tomorrow and keep you posted as soon I have news.