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A typical day on the Fort Pierre National Grasslands

Fort Pierre National Grasslands - South Dakota

Two weeks off of work, winding down as I prepare to return to work tomorrow. It’s been a wonderful (and much needed!) break, with time with the family, and plenty of birding. In two weeks I managed to make it out to central South Dakota three times…more than I normally do all winter! It’s such a magical place for me in winter. Quiet…open…often harsh and unforgiving…yet very restorative for me when I need time alone to recharge.

So what’s the attraction? Central South Dakota? In the dead of winter? Here’s a photo synopsis of what it’s like, all photos from my most recent trip out there last Thursday/Friday.

Fort Pierre National Grasslands - Sunrise
Pre-dawn on the Fort Pierre National Grasslands. Normally I make a (long) day of it, leaving 3 hours before dawn so I can arrive just before the sun rises, and make the most out of short winter days (about 9 hours of sunlight at a minimum). This photo gives you a good idea of what it’s like as you await the sunrise…VAST…open…isolated…and other than barbed wire fences and a few powerlines, often not much of a sign of human habitation. An exciting time as the sun arises, as you just KNOW you’re about to have another wonderful day on the grasslands.
Pronghorn - Fort Pierre National Grasslands
It’s not ALL about birds! While winter raptors are my primary reason for coming to the region, there’s often other wildlife to catch your attention. On this trip I was thrilled to see a large herd of Pronghorn grazing on the rolling hills, just as the sun was rising. Mule Deer and White-tailed Deer are also often seen. Coyotes are certainly around, and I probably see them about every other trip to the Grasslands, but mostly at dawn. They’re extremely shy and difficult to approach.
Buteo Regalis - Ferruginous Hawk - Fort PIerre National Grasslands
There are a few private land holdings within the Grasslands boundaries, but there are more abandoned buildings than any other. In a land that’s often treeless or without any kind of high perches, these abandoned homesteads often are birding hotspots. Here a Ferruginous Hawk is perched next to an abandoned…Packard (?).
Gyrfalcon - Falco rusticolus
RAPTORS are the name of the game on the Fort Pierre National Grasslands, but there’s a definite hierarchy in terms of what I’d love to see!! The Holy Grail bird of the Fort Pierre National Grasslands…a Gyrfalcon! And not only a Gyrfalcon, but an adult Gyrfalcon. In the 20 years I’ve been birding the area, I’ve probably seen about 25 Gyrfalcons. I believe I can count on one hand how many of those have been adults, so I was thrilled to run across one on this trip. I watched from a long distance and took some photos from further away than I normally would, as I wanted to make sure I documented this bird’s presence. I’m glad I stopped so far away and grabbed some photos, because after watching it for perhaps 30 seconds, it flushed and flew away, and I never again found it on this trip.
Greater Prairie Chicken in Flight - Tympanuchus cupido
Why are there so many raptors on the Fort Pierre National Grasslands? Clearly raptors go where the food is. There undoubtedly must be a lot of voles and other small rodents, as that’s what I primarily see birds like Rough-legged Hawks catch. But another attractant to birds like the Gyrfalcon above are all the Ring-necked Pheasants, Sharp-tailed Grouse, and Greater Prairie Chickens that are around. It’s a popular hunting location for all of those species, and given that surrounding private lands often release birds (pheasants) for hunting, there’s never a shortage of any of those species. The native Sharp-tailed Grouse and Greater Prairie Chickens are VERY wary as a result of the hunting pressure, and I have few close photos of either species. On this trip I was very happy to get my first ever flight photo of a Greater Prairie Chicken. With the recent heavy snow, many of the game birds were struggling to find foraging grounds, and were concentrated along the roads more than usual.
Ring-necked Pheasant - Phasianus colchicus
Speaking of Pheasants…they are widespread in the area, but are probably less common on the Grasslands themselves than on the surrounding private lands.
Bald Eagle - Haliaeetus leucocephalus
You’ll see both Bald Eagles and Golden Eagles on the Grasslands. Golden Eagles are more often seen (they were downright common on the three recent trips I took), but even far from any open water, you will also often see Bald Eagles. I’m aware of at least 4 different nests just to the south of the Fort Pierre National Grasslands themselves, near the Presho area. This photo is along the Missouri River just to the north of the Grasslands, a stronghold of the species in the winter months.
Prairie Falcon - Falco mexicanus
A Prairie Falcon in flight. They’re definitely a larger bird than the American Kestrels you see a lot in the summer months (and to a much lesser extent, in winter). They’re larger than the Merlins you sometimes see on the Grasslands (including one I saw Friday). But they share the same “falcon” characteristic when they take flight, with much faster wingbeats than all the Buteo hawks in the region, and a more tapered wing. Couple the relatively large size and that classic falcon flight pattern, and Prairie Falcons OFTEN get my heart racing as I’m thinking that bird flying up in front of me may be a Gyrfalcon! On a typical day on the Grasslands though, I’m lucky if I see a Gyrfalcon, yet I almost always see 3 or 4 Prairie Falcons. Usually they’re pretty shy, but there’s been one hanging around County Line Road on the grasslands this winter that’s uncharacteristically curious. He’ll flush when you get anywhere close, as do nearly all Prairie Falcons. But then he has this habit of circling me one or two times before finding a different perch! It’s not often I can grab a Prairie Falcon in flight, so I’m pretty happy to have seen this guy on this past trip.
Rough-legged Hawk - Buteo lagopus
Always by FAR the most common raptor on the Fort Pierre National Grasslands in winter…a Rough-legged Hawk. I didn’t stop and record each one in eBird as I often do. But on a trip to the area the week before I saw nearly 50 of them, and I would suspect I tallied a similar number on this past trip. Gorgeous birds, and quite variable in plumage, although this is the typical plumage that you see.
Buteo jamaicensis - Red-tailed Hawk
The Fort Pierre National Grasslands are mostly treeless, and even during the summer months I’ve found Red-tailed Hawks are typically concentrated in the few wooded ravines, shelterbelts, or abandoned farmsteads in the area. In winter, those site tendencies are even more pronounced. Many Red-tailed Hawks move further south for the winter, and I find MANY more Red-tailed Hawks just south of the Grasslands (such as the Presho area) in winter than I do on the Grasslands themselves. However, over the 20+ years I’ve been birding the area, it’s quite obvious to me that more birds are overwintering in the region than used to. Similarly, 20 years ago it wasn’t common to find Western Meadowlark overwintering in any numbers, but on this past trip, there were a few spots where I stirred up a dozen or so Meadowlarks hanging out together. More Red-tailed Hawks, more Meadowlarks, fewer Gyrfalcons….that’s my impression of what’s happened over the last 20 years.
Golden Eagle - Aquila chrysaetos
The one photo here that’s not from last Thursday/Friday, as this was taken on the Grasslands 2 days before Christmas. My impression is that BOTH eagle species are getting much more common on the Grasslands. I have few if any photos of them 10 to 20 years ago, but now I typically see 6-10 each time I go out.

Eagle Nest and Young near Sioux Falls

Bald Eagle (Haliaeetus leucocephalus) occupying a nest with young

A very windy day, but with time for finding migrant warblers and shorebirds drawing to a close in the next few weeks, I wanted to go out to see what I could find of either group. The answer…not much! It was such a snowy winter and wet spring, and there are flooded fields and other great shorebird habitat everywhere you look, but someone forgot to tell the shorebirds to show up. Warblers haven’t been much better, as so far with the relatively cold last week+, there haven’t been good numbers of migrant warblers, other than the ubiquitous Yellow-rumped.

I’m not going to complain, as it has been a great spring for migrant sparrows and some other species. So while the day started with a focus on warblers and shorebirds, it ended with something very different. I was driving in Minnehaha County, and saw a road closed sign, with a lot of water about half a mile down the road. Thinking it might be a good place to see shorebirds, I went down the road to the place it was washed out. There were a handful of shorebirds (Pectoral Sandpipers and Lesser Yellowlegs), but it was pretty quiet. However, in a stand of some of the tallest cottonwood trees I’ve ever seen was a MASSIVE nest…clearly a Bald Eagle nest. It was a good 200 yards from where I parked and I couldn’t see much, so I did a bit of wading through the washed out road until I got a little bit closer and could see through a gap in the branches. I was rewarded by the sight of an adult Bald Eagle perched on the edge of the nest.

It was a windy, not really pleasant day, but I found a little protected spot near a bridge, a hunkered down to watch for a while. I wanted to try to see if there were any young in the nest, or perhaps see the adults bring food back to the nest. For about half an hour, not much happened, as the lone adult sat on the nest without moving much. Finally she stood up, shook her feathers a few times, and took flight. Off she went along the path of the flooded creek, stopping once and circling a bit when it seemed that something caught here guy, before continuing down the creek and disappearing.

The nest in the meantime seemed unoccupied, and it made me wonder if she’d successfully nested that year. The lack of her mate during the whole episode also made me wonder if she just hadn’t mated this year. However, about 5 minutes after she flew off, a head popped up along the edge of the nest…a young eagle! Then another head, another young bird that looked a little smaller and less developed than the first. Not a lot happened for the nest 20 minutes or so, with the 2 young birds not moving much, but with heads clearly visible in the nest.

Then about half an hour after the adult left the nest, an adult came flying in along the road. Whether it was the adult on the nest previously, I don’t know, but clearly it was one of the parents of the two young. It didn’t appear to have food or anything for the young, and landed on a branch some 20 yards from the nest. Not long after landing, she began to be harassed. The tall cottonwoods must have had some cavities, because there were several European Starlings flying in and around the trees, and they weren’t happy with the Eagle’s presence. They didn’t directly harass the parent, but one resident of the cottonwood grove certainly did…a Red-headed Woodpecker. With some vocalizations that carried through even the heavy wind, the woodpecker twice flew at the Bald Eagle before landing in a branch above it and giving it a good scolding. The eagle scolded the Red-headed Woodpecker right back at one (giving me a great photo opp!), before the two settled into an uneasy truce.

About 5 minutes after landing on the branch, the adult eagle flew to the nest, and settled in. Once she arrived, the young again disappeared and were no longer visible on the edge of the nest. That was still the situation when I departed.

No shorebirds…no warblers…but a wonderful morning spent watching the eagle family try to raise a family. They certainly chose a wonderful spot, in the middle of nowhere (for Minnehaha County), in the tallest trees in the area, and surrounded by a heavily flooded creek flowing around the trees that made it impossible for any land creature to get close to them. From the size of the young it looks like she was well on her way to successfully fledging a pair of young, whether or not she was doing it on her own.

Bald Eagle Young (Haliaeetus leucocephalus) in a Nest
Two young eagles, peering over the edge of their nest. It was only during the 30 minutes or so that a parent wasn’t around the nest that the two made themselves visible, pretty much the opposite behavior as I would expected! I’d have thought that without a parent nearby, they’d want to make themselves as inconspicuous as possible.
Bald eagle - Bald Eagle (Haliaeetus leucocephalus) near nest site
A war of words between the adult Bald Eagle and a Red-headed Woodpecker that did a couple of fly-bys. This was a little after she came back to the trees where the nest was, after being gone for about half an hour (or it is the 2nd adult).

Eagle Convention at Splitrock Creek

After 17 or so years of using one lens for bird photography (a Canon 400mm 5.6L), I ordered a new lens that arrived Monday…the Canon 100-400mm 4.5/5.6L IS II that I’ve mentioned previously.  The timing was fortuitous, as late this week we’ve had something rather unprecedented happen for the area around our little town. We’ve had severe flooding, flooding which is actually supposed to get worse early next week as all the snow pack north of us melts. Splitrock Creek runs through our little town of Brandon, and in the wake of the flooding it has left massive ice chunks all along banks and roads near the river. But it also left scads of dead Asian Carp and other fish.

Seemingly overnight, the area around our town has been inundated with Bald Eagles. We actually have an active Bald Eagle nest less than a mile from our house, a nest that’s been used continuously for about the last 6-7 years.  It’s not rare to see one or sometimes even two Bald Eagles while out and about near our town. Today however, I was on a bridge over Splitrock Creek, and from that one spot I counted 29 Bald Eagles. In…one…spot.  There have been eagles in varying concentrations all along a 10-mile stretch of Splitrock Creek that I’ve checked out this week.

When I started birding 20 years ago, I still remember seeing my first Bald Eagle along the Big Sioux River near Canton. I remember the excitement of seeing such a majestic bird. It’s amazing how rapidly their numbers have increased in the last few decades, as I can now be in any part of South Dakota, in any season, and it’s not a surprise to see one or more Bald Eagles. Even when I visit the grasslands in the central part of the state, an area that is far from any significant river or lake, I find Bald Eagles, sometimes in big numbers. A true success story for American conservation!  But even on a night like tonight where eagles are seemingly everywhere, it’s still a thrill to see and photograph these birds.  Some photos from today:

Young Bald Eagle - Haliaeetus leucocephalus

Young (3rd year?) Bald Eagle, flying over Splitrock Creek near Corson, South Dakota. However, it’s not just young birds that are in our area right now. In fact, a majority of the Bald Eagles I’ve seen in the last few days have been fully mature birds.

Bald Eagle - Haliaeetus leucocephalus

A mature Bald Eagle flying over the trees near Brandon. There were plenty of mature Bald Eagles around, but they were seemingly shyer than the young birds.

Bald Eagle - Haliaeetus leucocephalus

Another young Bald Eagle sitting on a tree stump northeast of Corson. While most birds are along Splitrock Creek, there are so many birds around that they seem to have spilled out onto the surrounding farmland as well.

Bald Eagle - Haliaeetus leucocephalus

A mature Bald Eagle hanging out on a chunk of ice left behind by the flooding at Splitrock Creek north of Brandon. This is perhaps the most common “perch” for these guys right now, as most of them that I’ve seen have been among the ice flows, where the dead fish are concentrated.

Bald Eagle - Haliaeetus leucocephalus

A long-distance shot, but it gives you an idea of the concentration of the eagles. There are 10 in this one shot, sitting on stranded ice blocks on a sandbar in the receding Splitrock Creek. This is the location where I saw 29 birds at once today.

Bald Eagle - Haliaeetus leucocephalus

An even longer-distance shot, showing a common sight in the trees near Splitrock Creek this week. There are 8 birds in this one tree, but it’s this group of trees where a local farmer told me there were 75 roosting overnight earlier this week.

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