Golden Eagle Monitoring and Research in Yellowstone National Park; Questions, Answers, and More Questions
Golden Eagles (Aquila chrysaetos) are a North American species of conservation concern throughout their range. Prior to 2011, no data regarding local population size, reproduction, or food habits was available for the species in Yellowstone National Park (YNP). With range-wide conservation concerns for the species and the lack of local knowledge in YNP, Golden Eagle monitoring was initiated in 2011. Our primary objective was to monitor occupancy and reproductive rates annually. A secondary objective was to understand food habits through the collection of prey remains and the use of motion triggered cameras at the nests. We have identified a relatively dense local population across the northern range of YNP. However, average reproductive rates over the past 13 years have been low, stimulating questions as to what environmental factors limit reproductive success. Hypotheses include extreme weather, variation in prey availability, and the recovery of large carnivores within YNP. To date, our research has evaluated temporal and spatial components of Golden Eagle habitat that could explain reproductive output. The research has advanced our understanding of the potential drivers of low reproduction. However, research regarding survival rates and other life-history stages is needed to better understand the status of this local population.
David Haines is a wildlife biologist with over 20 years of experience studying birds and is currently leading Yellowstone National Park’s Bird Program. He has a bachelor’s degree from California Polytechnic State University, San Luis Obispo in ecology and systematic biology and a master’s degree from the University of Montana in wildlife biology. He has been affiliated with Yellowstone’s bird program since 2011. At the University of Montana, David studied breeding ecology and resource selection of Golden Eagles across Yellowstone’s northern range. When not working, David spends much of his time with his wife Dana, two young children Henry and Wylie, and dog LD.
This is our Annual Meeting & Board of Directors Election.
To attend virtually, please register at https://attendee.gotowebinar.com/register/905886969300630362. After registering you will receive a confirmation email containing information about joining the webinar.
The in-person meeting will be held at Hope Lutheran Church, 2152 West Graf. (off S 19th)
The potluck begins at 6:00 PM. Please bring a sweet or savory dish to share. Plates and utensils will be provided. Bring your own mug. There will be a main dish provided by SAS. After the potluck, there will be a short meeting and board elections beginning at 7:00 PM, immediately followed by the program.
Attendees -whether in person or virtual- are encouraged to share their bird sightings at this and every monthly program.
SAS monthly programs are free and open to the public, featuring a special guest speaker the 2nd Monday of each month, September through May. For more information, contact Ken Sinay at programs@sacajaweaaudubon.org.
