On Saturday, I met Derek up at Horicon Marsh. Lately, the best shorebird habitat has been at Horicon and some rare species have been located. One of the rarest has been the a Sharp-tailed Sandpiper that has been seen off and on for the past week. While the sandpiper didn’t make an appearance there was still plenty to see.
When I arrived on highway 49 I saw an incredibly large number of birds on the mudflats to the south. Many were too far out to identify, but some of the closer birds turned out to be decent finds. Some notables were Wilson’s Phalaropes, Black-necked Stilts, and Short-billed Dowitchers.
On the north side of highway 49 were many Great Egrets and Great-blue Herons feeding on fish left behind by the drying water. Among the Egrets and Herons was a single Snowy Egret (a rare bird for the state with only a few reports each year). A few Least Sandpipers and Killdeer were also present.
After another quick scan of the south side oh 49 yielded no new birds, Derek headed out while I continued to the Auto Tour. I parked in the Auto Tour lot and walked down Old Marsh Road. Within 50 feet of walking I noticed a Least Bittern perched up on the reeds. This was the closest I had ever been to a Least Bittern so even though they aren’t rare it was a nice surprise. Farther down the road I added Sora, Virginia Rail, and Black Tern to my day list. On the way out of the auto tour I located a juvenile Common Gallinule.
Overall, I found several year birds with the Snowy Egret being the rarest. While the Sharp-tailed Sandpiper couldn’t be found, it was still a great day to be out.
Derek and I met up at Horicon Marsh to see if we could find any cool wetland birds before they head south for the winter. We started out at Marsh Haven Nature Center to look around a bit before venturing into the marsh. We saw a juvenile Chipping Sparrow at the feeders and the usual Purple Martins chattering above the Martin houses.
Next, we started on the Auto Tour loop. I thought the loop could take us an hour or maybe an hour and a half if we walked some of the trails. We were breezing through it as the first pond contained a few ducks and some Great Egrets. However, when we got to Old Marsh Road we got out and started walking the trail east.
We immediately saw some common birds such as Northern Cardinals and American Goldfinches. after a few hundred yards onto the road we started seeing usual marsh suspects such as Pied-Billed Grebes and Wood Ducks. These were two of the most numerous species on the trail. In the watery areas to the north we located more Wood Ducks and an American Coot family with parents and young. Farther down we heard the call of a Virginia Rail that we were unfortunately never able to get a visual of. All the while, Marsh Wrens made their clattering noise from the tall reeds.
We continued on and came to the only shaded spot on the trail where we took a minute to relax before continuing. From this location east, the water opened up more and we saw gulls and American White Pelicans and a family of Common Gallinules. We were hoping to see a Least Bittern in this area as I saw one there last year. We got excited for a second as a small bird took off from the shoreline nearest to us and headed out to the opposite bank but it turned out to be one of three Spotted Sandpipers in the vicinity.
We turned the corner of the trail and went south for a short while. Suddenly, a small heron-like bird flew across the trail directly in front of us. It was a Least Bittern! It reached the reed line and vanished completely. I was able to get a blurry photo of its back but that was it.
From there we continued to follow the road when it turned east again and revealed drying mud flats. Canada Geese and Killdeer were numerous in this location and it was the best shorebird habitat we had seen to that point. there was a large flock of peeps that flew low over the mud but basically disappeared from our view somewhere out in the mud where we couldn’t see them. We happened upon several Least Sandpipers and a Stilt Sandpiper close to the path. Out in the tall grass was a weird looking bird that seemed to ungracefully walk through the weeds. At first I thought it was another Stilt Sandpiper but it turned out to be a non breeding plumage Wilson’s Phalarope. I had never seen one out of the water before so it was a unique experience for me.
We figured it was time to head back to the car since we’d already spent about an hour and a half on Old Marsh Road Alone. On the way we stopped and scanned for the Least Bittern. Derek was able to pick it out on the opposite shore (an impressive feat). This was the first time we were ever able to get a recognizable photo of one before even though it was long range. We also noticed a few Yellow-Headed Blackbirds on the way back. Most of them seemed to have moved on already so we were happy to find a few left.
After a long walk back we cruised through the rest of the auto tour and headed over to 49. We stopped near a parched Double-Crested Cormorant and were flagged down by another birder. They pointed out four Trumpeter Swans extremely close to the road. This was the Trumpeter Swan family that people had been watching all year with two adults and two cygnets. They seemed to have no worries about people being within 20 feet of them. Also on 49 were several Black Terns and Swamp Sparrows.
With it starting to get late in the day we made our last stop at Point Road which is the other end of Old Marsh Road. We were hoping to see some Black-Necked Stilts the had been reported their earlier but we had no luck. There were some Greater and Lesser Yellowlegs but otherwise, the shorebirds were few and far between. The highlight of this location was a Sora that popped out at close range for a few minutes. These birds aren’t rare but they are elusive and tough to get a good look at.
In all, our trip was a success finding the Least Bittern and the Wilson’s Phalarope along with some of the usual suspects. We may be making another trip or two out there as summer turns into fall and more shorebirds come through, assuming some habitat develops.