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Tag: Oregon Wildlife Foundation

Official Video Release of “From the Field – A Study of the Oregon Vesper Sparrow” by Daniel Thiede

Sarah Rockwell talking about a MOTUS node.

Thank you to everyone that attended the world premiere of the short documentary “From the Field – A Study of the Oregon Vesper Sparrow” by Daniel Thiede at Vesper Meadow Restoration Preserve. We are beyond grateful to have partners like Jeanine Moy, Director of the Vesper Meadow Education Program, who provided the space for this event and continues to support our research.

At this event, we celebrated Indigenous Peoples’ Day by acknowledging the land on which we work as traditionally occupied and cared for by the Takelma, Shasta, Modoc, and Latgawa peoples; and heard from Jeanine about how her program is working with local tribes to recenter Tribal members at Vesper Meadow, integrate traditional knowledge into restoration practices, and provide access to their ancestral homelands, First Foods, and other resources. Attendees also heard a short talk from KBO Research Biologist Sarah Rockwell about Oregon Vesper Sparrow research, took a short walk to view the first Motus wildlife tracking station in Oregon and a satellite node, and enjoyed the video premiere.

Vesper Sparrow Stephens flipped cropped (72dpi 11x17)
Oregon Vesper Sparrow (c) Jaime Stephens

We are officially releasing the documentary for public viewing. Join Daniel and KBO on a journey to understand the ecology of the at-risk Oregon Vesper Sparrow and the causes of its decline. Daniel covers the life history of this handsome little brown bird and the field methods and new technology that KBO is employing to study its life cycle year-round. Through beautiful imagery and graphics, he tells the story of KBOs’ continuing research to understand the decline of the Oregon Vesper Sparrow, a subspecies of conservation concern unique to the Pacific Northwest, and look for solutions.

Don’t forget to check out our website and learn more about the Oregon Vesper Sparrow and KBO’s work. The Oregon Wildlife Foundation funded the Vesper Sparrow video. Our ongoing Oregon Vesper Sparrow research has been supported by the BLM’s National Conservation Lands Management Studies Support Program, Carpenter Foundation, Charlotte Martin Foundation, Friends of the Cascade-Siskiyou National Monument, MPG Ranch, Oregon Conservation and Recreation Fund, Oregon Wildlife Foundation, Oregon Zoo’s Future for Wildlife Fund, and the U.S. Fish and Wildlife Service.

Using Motus Technology to Inform Conservation of the Oregon Vesper Sparrow


Handheld radio telemetry antenna detects tagged birds away from the main Motus station.

Fall 2020 saw the installation of the very first Motus station in Oregon at the Vesper Meadow Restoration Preserve in partnership with the Vesper Meadow Education Program. The Motus Wildlife Tracking System is a collaborative research network using automated radio telemetry stations to study the movements of small organisms. Tags are small enough to be carried by birds, bats, and even bees. Motus tags emit a radio frequency that can be detected by a nearby Motus station anywhere in the world, and the number of stations is quickly growing.

Motus LifeTag

We are using Motus technology to enhance our ability to track movements of the at-risk Oregon Vesper Sparrow. In 2021, we searched for nests of this ground-dwelling bird at Vesper Meadow, and placed Motus- compatible LifeTags on 12 Oregon Vesper Sparrow nestlings that were nearly ready to fledge. LifeTags are solar-powered and emit a signal every few minutes during daylight hours for the lifetime of the bird. The automated “resighting” and location estimation from this new technology will help us study habitat use, movements, and survival of young birds during the post‐fledging period when they are particularly vulnerable, and explore dispersal of birds returning to nearby meadows next spring. We also set up an array of 18 Motus nodes around the edge of Vesper Meadow to supplement our main Motus station there. Four of the nodes formed a mini-grid around two of the nests with tagged nestlings, and this will serve to pilot the use of this technology to track precise fledgling locations and habitat use. We collected tens of thousands of detections of our tagged fledglings from the node network over the months of June-October – and likely a lot of radio frequency “noise” from other stray signals – and we look forward to sorting through and analyzing those data this winter.

Adult Oregon Vesper Sparrow at the Lily Glen field site. (c) Frank Lospalluto

The Oregon Vesper Sparrow is a subspecies of conservation concern, and it has been petitioned for listing under the Endangered Species Act due to its low population size and declining trend. We have noted low rates of fledged young returning to our field sites at Lily Glen and Vesper Meadow for their first spring as breeding adults. Motus technology will help us determine the cause – are young birds having trouble surviving the vulnerable post-fledging stage, or their risky first round-trip migration and winter? Or are they simply moving away from the meadows where they were born and choosing other nearby meadows to try raising their own young? A handheld radio telemetry antenna will allow us to more easily locate any tagged birds that disperse away from our main field sites to other nearby meadows next spring.

In addition to enhancing our Vesper Sparrow research, the Motus station at Vesper Meadow has detected two Lewis’s Woodpeckers migrating from MPG Ranch lands in Montana, one Swainson’s Thrush that was banded in interior British Columbia, and a Western Sandpiper and Semipalmated Plover from coastal British Columbia – so the station is assisting other researchers with their migration tracking projects as well! Our Motus station, node network, and tagging effort were made possible by the USFWS, MPG Ranch, Oregon Wildlife Foundation, and private donations.

Click here to learn more about our work with the Oregon Vesper Sparrow.