INCUBATION TIME


House Wren guarding the nest

It’s breeding season for most of the birds in our woods. Many species incubate their eggs and are not seen as often as the weeks before during their mating time. We are very fortunate to have three different species sitting on eggs right here at the house. As during the last three years a pair of American Robins has built a nest on our balcony. They had originally four eggs, two didn’t make it, but two little chicks are currently fed by their parents. We avoid being on the balcony as much as possible.

The second bird is the Gray Catbird I reported about a few days ago. I discovered a nest today with two eggs. They built it between the branches of a mountain pine that grows right beside our porch. Another area we will try to avoid in order not to disturb the birds during incubation and the time after.

Last but not least, as every year a pair of House Wrens has occupied a nest box in our front yard and another female sits on eggs in another box at the back of the house. House Wrens are not monogamous and there is a good chance that the little male bird in today’s photos has something to do with the nest in the backyard as well. However, he tends and protects the bird box at the front. The wren sings his heart out, especially when the female has left the nest for a few minutes. He does that usually from a perch in the neighborhood, and not near the nest, so a possible predator will be attracted to him and not the clutch of eggs or the female while she is trying to find something to eat for herself.

I use this great photo opportunity and practice a lot with the long lens and teleconverter attached. The 850 mm focal length allows me to stay away as much as possible from the birds and still can fill the frame without cropping a single bit off.

Nikon Z6II, Nikon FTZ adapter, Sigma 150-600mm / f5-6.3 DG OS HSM S, Sigma APO Teleconverter 1.4x EX DG, Induro GIT 404XL tripod, Induro GHB2 gimbal head,

1. photo   @ 850 mm, 1/200 s, f/9, ISO 640

2. photo   @ 850 mm, 1/125 s, f/9, ISO 400

KILLDEER FLEDLINGS


Killdeer fledgling out for walk

I always worry when I go to the Green Island Wetlands and see a Killdeer, a larger plover, running around in one of the gravel covered parking lots. The parking lots are empty for most part of the year and only during the duck hunting season you may see a number of pick-up trucks with boat trailers there. But visitors use them to turn or look around. And that’s where the danger for the Killdeer starts. They lay their eggs in a shallow depression in gravelly areas or grass and the parking lots are obviously a preferred habitat for breeding. The incubation time is between 24 and 28 days and that’s a long time when bad things can happen and the brood is at risk.

Back under the wings

Killdeer are masters in luring an intruder away from the nest. I have seen this Killdeer and its partner running around and had an idea where the nest would be. I avoided the area and just watched with my binoculars or through the long lens from the distance during the last weeks. Yesterday evening I spotted a fledgling for the first time and a little later a second one. One of the adults was still on the nest while the other one foraged nearby. The adult bird on the nest called the young ones but they had their own mind and took their time to go back under the wings. The second photo tells the last part of that story pretty good.

We all hate rules, but there is one I like to bring to mind. When birds are active with nesting you have to remember, no photo is worth sacrificing the welfare of the animal! Keep your distance and don’t keep the parents away from the nest for a long time.

FIRST GLIMPSE


Great Horned Owl  ------------   

It looks like I show you the same image at this time of every year. Yes, a Great Horned Owl sits again in the nest at Mud Lake Park, just a stone throw away from the Mississippi River. 2017 is the fifth year in a row that the Great Horned has chosen this nest site. A couple other photographers have emailed me during the last days that they saw the owl and even the male was spotted in another tree (Thank you Linda and Ken!). Incubation takes about 28 to 35 days and is mostly done by the female.

 I was there yesterday afternoon but the bird was out of the nest. Today I used my lunch break to drive down to Mud Lake again and was even able to make a few clicks. Distance is always a bit of a problem and I used all my technical means to overcome it. First, the Sigma APO Teleconverter 1.4x EX DG was mounted between the Sigma 150-600 mm lens and the camera to extend the focal length to 850 mm. Second, the D750 was set to DX crop mode, which gave me the equivalent angle of view of a 1275 mm lens. I still cropped a little sliver on the right and top to keep a few distracting branches out of the frame. At that time of the day I had to shoot against the sun but a thin layer of clouds didn’t make this a big problem. Dialing in exposure compensation of +1 1/3 EV delivered the best results today. 

A DAY ON THE WATER


Lesser Yellowleg

Joan and I finally opened the kayak season yesterday (better late than never  ;-)  ) and spent several hours paddling in the backwaters of the Mississippi in the Green Island Wetlands. It is the time of the year when many birds incubate their eggs or have already young ones, like some of the Canada Geese. We had some wonderful wildlife encounters, like a mink swimming to shore, a Northern Watersnake, and lots of waterfowl, herons, and egrets. Not every sighting leads to a photo but it was just great to be out in the wild and enjoy the nice and warm weather

Nikon D750, Sigma 50-500mm / f4.5-6.3 APO DG HSM, SB 800 speed light

After the paddle trip we went on “bird patrol” by car to all the places in the wetlands that I visit frequently. We saw this Lesser Yellowleg foraging in the shallow water and it surprised us still seeing one of them since their breeding ground is in Northern Canada. I’m aware that my identification of a bird species can be wrong, this is especially true for shore birds, but in this matter I don’t have a better suggestion. Usually I have more images that I show here in the blog and even if they may not be always good enough to be published, but they help me quite often to identify a bird. However, if you read this and have doubts about any of my identifications, I will be very happy to hear from you

Wilson's Snipe

This photo of a Wilson’s Snipe was taken earlier this season, although we saw one yesterday evening. We are at the southern edge of their breeding range and so it is not a surprise to see them still around. More to come…