Skagit Audubon

Watching birds, protecting habitat, connecting with nature


“To Feed or to Fight? Behavioral Eco physics of Hummingbirds”
Presented by: Alejandro Rico-Guevara, PhD.
Tuesday, September 14, 7:00 PM

Sept21 PresEnergetically constrained animals have evolved adaptations to enhance caloric intake. On the other hand, animal competition sometimes turns into physical combat, and particular weaponry evolves. Dr. Rico-Guevara will present findings on each of these fronts, along with a case study of hummingbird bill weapons. These discoveries revive questions about how these birds budget energy gain and expenditure to enable hovering, the most expensive form of locomotion, establishing coevolutionary relationships with the plants they pollinate.

Dr. Alejandro (Alejo) Rico-Guevara is an evolutionary biologist. He attended Universidad Nacional de Columbia as an undergraduate. He received his PhD. from the University of Connecticut as a Fulbright Scholar and carried out postdoctoral research as a Miller Fellow at UC Berkeley. He received the Pitelka Award for excellence in research from the International Society for Behavioral Ecology. His research has been featured by the NY Times, National Geographic Magazine, and in 6 nature documentaries/TV series, in addition to articles in numerous peer-reviewed publications. He is an Assistant Professor at the University of Washington and the Curator of Ornithology at the Burke Museum.

Please register for this Zoom event at:
Preregistration is required and is limited to 100 attendees. Please only one registrant per household. After you register you will receive an email with the link to sign in at the time of the event. Questions? Please contact

Due to the continuing emergency response to the COVID-19 virus, our in-person member meetings, field trips and hikes, and most other activities have been cancelled until further notice. This includes the offer of personal field trips for future donations to Skagit Audubon Society of $100 or more. Please visit our website for updates.


Skagit Audubon

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Skagit Audubon Society holds monthly meetings on the second Tuesday of each month except for the months of July and August. We meet at 7:00 pm at Padilla Bay Interpretive Center (Google map), 10441 Bayview-Edison Rd. Mount Vernon. Meetings are open to all.

The board of directors meets at the same location at 7:00 pm on the first Tuesday of each month, except for the months of July and August.


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