Showing posts with label Lake Byllesby. Show all posts
Showing posts with label Lake Byllesby. Show all posts

Sunday, April 13, 2014

Pelicans and Wing-spreading Posture

This morning there were several groups of American white pelicans resting on or near sandbars near the west end of Lake Byllesby, near Randolph, Minn. They were far enough out that we needed the spotting scope or a strong camera zoom to really see what was going on.


What appeared at first glance to be one large bird (above) turned out to be two (below).


An American white pelican's enormous wings, with a span of  roughly 8 to 9 feet, are one of the most beautiful sights in birddom. A couple of the birds today were holding their wings outspread in the behavior we've also seen in vultures and cormorants. It may be done to dry feathers; it may be to absorb warmth (thermoregulation); or perhaps other reasons. See, e.g., https://www.stanford.edu/group/stanfordbirds/text/essays/Spread-Wing_Postures.html. Whatever the reason, we saw a nice demonstration of it today. This is a gorgeous display of the black tips on the otherwise white wings of an American white pelican.




There is a good overview of American white pelicans and both their historical and recent presence in Minnesota, where it is a "species of special concern," here.

Wednesday, April 18, 2012

Yellowlegs

Greater (or Lesser?) Yellowlegs at Lake Byllesby

This is not a bird whose name's origin you have to guess at. Those are extremely yellow legs. 

I'm not positive whether this is a greater or a lesser yellowlegs. Does the bill look to you as if it is longer than the width of the head, and slightly upturned? It does to me, which would make it a greater yellowlegs. But the differences are subtle and the distinction can be difficult to make.

I was at Lake Byllesby with binoculars and spotting scope again last evening, hoping I might catch one of the shorebird rarities that have been popping up in migration. I had planned to be elsewhere, but I'd been indoors all day, and when it came down to it, I needed fresh air and quiet water and solitude. 

I saw at least 80 pelicans on their favorite sandbar far out into the lake; I saw perhaps 40 or 50 each of green-winged teal and blue-winged teal, and some sprinklings of northern shovelers, coots and mallards. I saw several groups of shorebirds -- I think some lesser and some greater yellowlegs (I think I heard both calls), plus a small group of pectoral sandpipers. I saw two bald eagles overhead and the resident great horned owl on her nest. 

No rarities this time, but spending the last hour of light on the edge of the lake -- the cool air echoing and rippling with the piercing calls of yellowlegs, the honking of geese and even the peculiar bark of a pelican -- was pleasure enough.

Sunday, April 15, 2012

White-faced Ibis at Lake Byllesby

After a full day yesterday at the Bluebird Expo in Byron, Minnesota, we got home and read a report that Hudsonian godwits had been seen at Lake Byllesby yesterday. This would be a rare and brief stop-off on their long migration -- these large shorebirds winter in southern South America and breed in northern Canada and Alaska. When we went to the lake today, none were in evidence anymore (last night's strong south winds may well have given them a favorable tail wind out of the area), but experienced birders leaving the area as we were arriving reported seeing seven white-faced ibis (or ibises -- Merriam Webster says the plural can take either form). And sure enough, there they were in the shallows at the far west end of the lake, amid a good number of greater and lesser yellowlegs, pectoral sandpipers, ducks and more.

White-faced Ibis


This tall, dark, handsome wading bird gets the "white-faced" part of its name from the white outline around the face that is somewhat visible on the bird on the right in the photos above. It is rarely reported in eastern Minnesota. In the United States, it is found year-round along the Gulf Coast and in Southern California, particularly the Salton Sea, with summer breeding populations found mainly in the northwest and central U.S., usually no closer to us than eastern South Dakota and Kansas. With those population patterns, even in migration you wouldn't expect to see many of these birds as far north and east as we are (though I understand that Atlantic coast sightings have started to occur). You can see a map of eBird sightings of the White-faced Ibis reported since 2008 here.


White-faced Ibis and a couple of Lesser Yellowlegs

Below is a very short video of the birds taken through the spotting scope. The photos above were taken in the same manner, but it is easier to crop the black vignette out of those than to crop a video. The sun was shining on my LCD and I really couldn't see what I was getting, so I didn't let it run more than a few seconds, but you get the idea of their motion as they probe for goodies in the very shallow water and wet mud.

Sunday, March 25, 2012

Great Horned Owl on Nest

Great horned owl - click photo for larger view

Today was a Top 10 Birding Moment -- seeing a great horned owl fly to her nest at Lake Byllesby, within range of our binoculars and spotting scope, and settle in, facing toward us. We watched her for about 20 minutes. She was panting quite visibly; we could see not only her open beak (visible above) but the movement of her throat. I tried to take video through the spotting scope to capture the panting, but I didn't get any usable results.

Great horned owls are year-round residents throughout almost all of North America. They are among the earliest nesters in our region, beginning in late January and February. They like to reuse the discarded nests of other large raptors, which certainly saves time and work. The prominent "ear tufts" that give the bird its name are actually neither ears nor horns.

Several crows were loudly harassing the owl, which helped draw our attention to her. Great horned owls are fierce predators and certainly eat crows, as well as other birds and mammals.

This was the first owl I've had a really good look at. (I wrote about my earlier owl encounters this year in January and February.) It was very exciting to have the luxury of watching this bird on her nest.

I've called this owl "her," but both the male and the female incubate the eggs, according to National Geographic, so this could have been a male.