Author: Susan Bonfield

01 Feb

Posted at 12:00h in WHP Projects
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Rufous hummingbirds (Selasphorus rufus) have shown consistent declines in abundance since 1970, with an acceleration in this trend starting in the mid-2000s.Demographic data is needed to isolate possible drivers. We employ mark-recapture data to calculate sex-specific adult apparent annual survival, accounting for residency probability, within the coastal...

07 Dec

Posted at 16:45h in WHP Updates
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North American hummingbird species are undergoing significant changes in populations, according to new research published in Nature’s Scientific Reports.  [caption id="attachment_1305" align="alignright" width="300"] The Ruby-throated Hummingbird alone fills its ecological niche in eastern North America.[/caption] Hummingbirds are unique among birds in many ways. They play a critical...

19 Nov

Posted at 16:29h in WHP Updates
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Together with Environment for the Americas, we recently facilitated an expert-led webinar on the impacts of pesticides on native plants and their pollinators. [caption id="attachment_1995" align="alignleft" width="244"] Hummingbirds, bees, and butterflies play a critical ecological role.[/caption] The webinar, entitled “Pollinators, Pesticides, and Disease,” was held on November...

28 May

Posted at 12:00h in WHP Projects
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Viridiana Orona, a 2021 Mosaics in Science intern, will be working on a pollinator project at Saguaro National Park in Arizona. Mosaics in Science is a diversity internship program and partnership of Environment for the Americas that gives opportunities for young adults to learn from and work...

15 Jun

Posted at 12:50h in WHP Projects
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To inform future restoration efforts, we reviewed the known effects of fire and habitat management and restoration on hummingbirds in four key habitat types in North America. We examined seven species that most commonly occur west of the Rocky Mountains: Rufous (Selasphorus rufus), Calliope (Selasphorus...

15 Jun

Posted at 12:00h in WHP Projects
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Gwen Baluss, USFS, Alaska: The Rufous Hummingbird is Alaska’s only regularly seen hummingbird. Making an annual trip from as far south as Oaxaca State, Mexico and back, the species tops the charts for migration versus size in the bird world. It is a tough traveler, but...

15 Jan

Posted at 12:00h in WHP Projects
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In January of 2020, the Western Hummingbird Partnership held a hummingbird workshop for individuals to learn or improve monitoring techniques, explore threats to hummingbirds, learn new education and outreach activities, and attend a hummingbird festival. The participants were able to meet and learn from Dr. Sarahy...

14 Jun

Posted at 12:00h in WHP Projects
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Between the icebergs and whale sightings, not many people visiting Alaska would notice the lack of Rufous Hummingbirds during the time that they are supposed to be abundant. But this is what Sarahy Contreras is working to change – her most recent project consists of...