Nelson County Rarity Roundup – Volunteers Wanted!

The first rarity roundup I participated in was the Virginia Rarity Roundup in the fall of 2018.  Held every year in Northampton County, one of the state’s best for birding, this event emphasizes finding state rarities and building the local birding community.  It was great birding — my team found an ash-throated flycatcher! — and lots of fun, and it got me thinking about the ways in which the format of the event could be applied to my home county.  Obviously Nelson is not Northampton.  There are no — or very few — Western, European, or Caribbean birds in the county each fall.  However, I believe Nelson is actually one of the better Central VA Piedmont counties for rare and uncommon but regularly occurring migrants, from species like Connecticut warblers and Philadelphia vireos to northern goshawks and golden eagles.  There are several eBird lists from Rockfish Valley trail with multiple rare species.  Some of the most mouth watering lists are below:

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Mourning Warbler.  This photo was taken in Highland County.

https://ebird.org/view/checklist/S48719356

https://ebird.org/view/checklist/S11684470

https://ebird.org/view/checklist/S49182860

https://ebird.org/atlasva/view/checklist/S38795337

Rockfish Valley Trail is one of the only places in Nelson that gets regular coverage in migration.  Just across the border in Augusta County, State Route 610 also used to get regular coverage, by Edward Brinkley.  He reported massive fallouts of migrating songbirds, including some rare species, like golden-winged, blue-winged, and Connecticut warblers, and olive-sided flycatcher.  More recently, I’ve had good numbers of birds on foggy days in fall, although nothing yet approaching what he reported.  The number and variety of birds that can be observed when an area is thoroughly covered by birders is amazing.  Here’s one of Edward Brinkley’s best lists:  https://ebird.org/view/checklist/S12891616

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State Route 610 during the summer.

I wonder how many more rare migrants are out there along the Blue Ridge that we don’t detect?  How many more fantastic migrant trap locations like Rockfish Valley Trail and State Route 610 are waiting to be discovered?  If birders birded all of Nelson County in one day, how many species and how many individual birds would we find?  I think the format of a rarity roundup provides a good way to encourage people to explore and begin to answer these questions.

I’ve divided Nelson County into 18 territories of unequal size and shape.  They’re drawn somewhat randomly, but I’ve tried to make the boundaries logical and to make it clear what territories the already well established birding spots lie in.  My hope is that I can get as many people or teams as possible to commit to bird a territory as thoroughly as possible for the day of Sunday October 6.  The territories are humongous compared to the one’s used for the VA Rarity Roundup in Northampton, and have much more private land, so I recognize that thorough coverage will be impossible.  The idea is more to use the territories as a broad organizational tool, so birders can split their effort across the county.  Some territories don’t have an eBird hotspot in them.  Some may not even have public land, which is OK.  There’s a lot of barely traveled backroads in Nelson, many of which could prove to be good birding.  How many new eBird hotspots can we add?

If you’re a birder, and interested in helping discover birds and birding hotspots in Nelson County and are available on October 6th, please consider covering a territory!  Here’s a link to a map of the territories.  Covering any of them would be a huge help, although I’m personally most curious about the territories along the Blue Ridge that don’t get birded, like 12 and 13.  I also think the territories along the James River, including the one with James River State Wildlife Management Area, could be interesting and productive.  Don’t worry if you don’t get your first choice territory, because I’ll be making a text group so we can alert each other to any rarities we find.  Once you know which territory you would like, or if you have any questions, contact me at ezraperegrine@gmail.com.

Blue Ridge Young Birders Club Field Trip to Rockfish Valley Trail Fall 2018

On October 14th I lead a trip for the Blue Ridge Young Birders Club to the Rockfish Valley Trail, a local birding hotspot in Nelson County.  I had high hopes for the trip, as the Rockfish Valley Trail tends to be a very productive place for finding uncommon and rare migrants in the fall, with Philadelphia vireo and Lincoln’s sparrows often present.  Only a few weeks previously I’d had one of the best mornings of birding in my life there, finding Philadelphia vireo and blue-winged, Connecticut and mourning warblers.  Around this time of year last year, my brother and I had two marsh wrens.  Six young birders attended the trip.

We walked under Route 151, doing our best to avoid getting our feet wet in the water overflowing from the South Fork of the Rockfish River.  The day was cool and cloudy but not unpleasantly so.  We encountered a large flock of song sparrows in a dense tangle of pokeweed and began scanning them for Lincoln’s.   We didn’t find any Lincoln’s in that flock but saw a few swamp sparrows.  As we were walking along a mowed path through a dense, brushy field, a tiny, bright yellow bird dropped out of a tree and into the grass.  Curious about what this could be so late in the year, we went to investigate.  The bird popped up onto a low branch of a black walnut tree for a few seconds, and I saw it was a Wilson’s warbler.

We continued around the loop towards the back of the field, where we encountered more sparrows.  I put my binoculars up to one and saw that it had a yellowish malar, gray supercilium and a yellowish breast covered in super fine, dark streaks — a Lincoln’s sparrow.  I think everyone got on the bird, although it soon hopped back down into the brush.

A flock of purple finches flew over and landed in the branches of a leafless oak.  We soon began hearing more purple finch calls, and several other flocks joined the first.  By the end of the day we counted 34 in small flyover and foraging flocks.  It was still early in the year for purple finches and seeing them in these numbers was encouraging for a good winter for them in our area.

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Purple Finch (Haemorhous purpureus)

As we rounded the bend in the path a flock of birds flew up into a tree.  One appeared to be a Catharus thrush, which my brother got on and said looked like a gray-cheeked.  We slowly crept to the other side of the tree so as not to scare the thrush again and saw that it was indeed a gray-cheeked thrush.  We re-found the Wilson’s warbler and a late Eastern wood-pewee nearby.

Once we got back to the top of the loop where we first saw the Wilson’s warbler, we paused for a bit to listen.  I heard a yellowthroat chipping in a large patch of common mugwort, so I went to investigate.  I found the yellowthroat and a couple of palm warblers, and I was just about to return to the group when Baxter called that he thought he had a Connecticut warbler.  The group assembled behind him and we slowly advanced towards the bird, which was entirely obscured by the dense mugwort.  I got a brief glimpse of the bird through the vegetation and saw a large warbler with a pale gray hood and a thin eye ring.  Suddenly the bird lifted off and flew to the end of the mugwort patch, followed a second later by a similar looking bird.  There were two of them!  Chaos ensued as everyone tried to see the birds while we debated their ID’s.  Eventually we cornered the two birds in a corner of the mugwort patch, and everyone got a decent look.  Their eye rings, although fairly extensive, were not complete, making them mourning warblers, not Connecticuts.  Finding two of them was still extremely exciting, and it was a Nelson County high count.  We photographed a beautiful blue-headed vireo in a willow along the river on our way back towards the cars.

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Blue-headed Vireo (Vireo solitarius).  Photo by Baxter Beamer.

The next location for the trip was State Route 610, a quiet mountain road that can sometimes have good migrants.  When we arrived the area was totally quiet.  We had to walk down the road for five minutes before we even heard a bird, which was a pileated woodpecker.  I did not give up hope, as I’d birded up here many times before when it first appeared very slow but then incredible bird activity occurred in explosive bursts.  Sure enough, a few minutes later the forest suddenly rang with a cacophony of warbler chips, and birds could be seen moving in every tree.  The vast majority of the warblers were blackpoll, but we also found several other species including Tennessee, Cape May, bay-breasted, pine and black-throated green.  Kinglets were also present in high numbers — we had fifteen golden-crowned and five ruby-crowned on a small stretch of road.  I spotted a red-eyed vireo, which was beginning to get late, as well as another blue-headed vireo.

Rockfish Valley Trail and State Route 610 did not let us down!

Bird Finding in Virginia: Rockfish Valley Trail

Note about this post: On past birding trips I have found bird finding guides extremely helpful.  Written by people familiar with local hotspots, these books give the sort of tips and tricks for birding a location that can take many visits to figure out for oneself.  Since there is no recently updated bird finding guide to Virginia, I have decided to make an online version through writing posts like this.  I will try to publish a new one every week.  Soon I will add a page on this blog with links to all the bird finding in Virginia posts that have been published so far.  Some of my friends from the Blue Ridge Young Birders Club have agreed to help me on this project.  Welcome Baxter Beamer, Tucker Beamer, Max Nootbaar, Ira Lianez and Drew Chaney to the birdsandbuds team!  We will stick to our local area for now, as that is where we are most familiar with the birding locations, but I would like to make this a statewide project.  If anyone reading this (especially in other parts of the state) would like to contribute articles like the one below, please send me an email.

 

Just past the town of Nellysford on the Rockfish Valley Highway (151), the Rockfish Valley Trail (RVT) is currently the most birded eBird hotspot in Nelson County.  Although there are certainly other locations in Nelson waiting to be discovered by birders, the RVT will remain one of the classics.  Driving 151 South, the Rockfish Valley Trail parking lot is on your right immediately after Horizon Village Road and the Bold Rock Cidery.

The Rockfish Valley Trail traverses cow pastures, overgrown fields and floodplain forests.  Sections of the trail run along both the South Fork of the Rockfish River and Reid’s Creek.

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Section of the Glenthorne Loop Trail.

From the parking lot, the Rockfish Valley Trail runs east and west along the South Fork of the Rockfish River.  Although both sides are good, I find that the eastern side — known as the Glenthorne Loop Trail — is usually more productive, especially for sparrows in the fall. To get to the Glenthorne Loop Trail from the RVT parking lot, go under the bridge beneath 151. On the other side of the bridge you will see a large cow pasture to your right and a row of densely planted cedars to your left.  Walk down the path between the cedars and the field, watching for eastern meadowlarks and grasshopper sparrows in the field.  Once the cedars stop, the path splits off in two directions and crosses an extremely brushy field.  During the spring and summer, the willows along the river here are a good place to see orchard orioles, eastern kingbirds and sometimes yellow warblers.  In previous Octobers this field has been an amazing spot for sparrows, with large numbers of Lincoln’s and swamp present.  I also had two marsh wrens here last October.

The trails eventually meet back up to form the beginning of Glenthorne Loop in front of Reid’s Creek, and from there you can either cross the creek on a bridge into another large field, or continue on the RVT side.  This area, behind the brushy field, is a great place for fall warblers.  I’ve had multiple blackburnian, blackpoll, bay-breasted and black-throated-green warblers in the early successional forests that border the path here.  This is also a great area for olive-sided flycatcher in the fall, although the tree they used to perch on has fallen down.  The trail goes back into the woods before coming out next to the cow pasture again, now following Reid’s Creek to the south, and I’ve never found it worth continuing at that point.  Other than more grasshopper sparrows, meadowlarks, white-eyed vireos and the occasional warbler, there usually aren’t many new birds there, so I turn around and bird the west side.

If you don’t cross under 151 and instead follow the trail west from the parking lot, you’ll walk in between a large field and a small riparian corridor along the river.  Extensive jewelweed patches grow next to the river here, and people often have mourning warblers in them during late August.  As you walk this section of trail, scan exposed perches for flycatchers.  Many species of Empidonax flycatchers can be found in the fall, including willow, least, yellow-bellied and probably alder.  Olive-sided flycatchers are also annual.  In the fall, watch for warbling and Philadelphia Vireos in the willows.  The trail extends for about a mile before you have to turn around.

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Philadelphia Vireo

Good birds seen at the Rockfish Valley Trail include: Olive-sided flycatcher, yellow-bellied flycatcher, least flycatcher, Trail’s flycatcher sp., northern waterthrush, mourning warbler, Connecticut warbler, blackburnian warbler, Wilson’s warbler, blue-winged warbler, black-billed cuckoo, warbling vireo, Philadelphia Vireo, gray-cheeked thrush, Lincoln’s sparrow, marsh wren, dickcissel and bobolink.

The Rockfish Valley Trail is a great place to bird any time of year, but especially in migration.  In my opinion September and October are the best months to bird the RVT, as that is when most of the warblers, flycatchers and sparrows are coming through.  I hope I’ve inspired you to come out to Nelson County to do some birding!