eWestern Birds

The Quarterly Journal of Western Field Ornithologists

Vol. 53, No. 1
February 2022
Western Field Ornithologists

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Merlin Parental Behavior and Chick Development as Revealed by Webcam
Lynn W. Oliphant, Ian G. Warkentin, Kelly Kozij, and Adam P. Schmidt

Breeding Swainson’s Hawks in the Central Coast Range of California
Stephanie Klein, Larry Baer, and Ryan A. Phillips

Diet-Related Plumage Erythrism in the Western Tanager and Other Western North American Birds
Jocelyn Hudon and Peter Pyle

Do Attributes of Gray Vireo Nest Sites Influence Brown-headed Cowbird Brood Parasitism?
Joseph F. Di Liberto, Maya R. Stahl,
Silas E. Fischer, and Kathy A. Granillo

Sierra Nevada Willow Flycatcher Decline Continues but Losses Abate at Two Restored Meadows
Helen L. Loffland, Lynn N. Schofield, Rodney B. Siegel, and Beth Christman


Notes on the Breeding Biology of the Hooded Grosbeak (Coccothraustes abeillei)
Richard A. Erickson and René Valdés

First Specimen of the Nazca Booby (Sula granti) for the State of Baja California, Mexico
Jonathan Vargas, Liliana Ortiz-Serrato,
César Iván Manríquez-Castro, and Gorgonio Ruiz-Campos

Northern Cardinal Nesting in Wyoming
Robert D. Dorn, Jane L. Dorn, and Calvin E. Dyer

Book Reviews:
Daniel S. Cooper and Robert A. Hamilton

Thank You to Our Supporters

Front cover photo by © Ed Harper of Carmichael, California: Prairie Merlin (Falco columbarius richardsonii) near Winters, Yolo County, California, 28 February 2019. Populations of all three North American subspecies of the Merlin have been on the increase in recent years.

Back cover photo by © Calvin Dyer of Lingle, Wyoming: Fledgling Northern Cardinal (Cardinalis cardinalis) begging from adult male near Lingle, Goshen County, Wyoming, representing the first confirmation of the species nesting successfully in Wyoming and an expansion of its range west along the North Platte River.