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- 11. Northwestern Basin and Range Section
- Puffins Plus
- Bird Checklist † Expected to Occur in Park but No Recent Detections
- Oregon Cascades Birding Trail
- Red Crossbill (Loxia Curvirostra) David C
- GALLEY File # 09TQ
- Red Crossbill Types, Settle Most Readily in Areas Where Cone Sizes and Types Are Most Similar to Those Found in Core Range
- A New Species of the Red Crossbill (Fringillidae: <Italic>Loxia</Italic>) from Idaho
- Red Crossbill Loxia Curvirostra
- Supplementary Material
- 3 ) U.S.D.A Forest Service Intermountain Region
- Bird Checklist
- Colorado's Crossbill Types
- Diversifying Coevolution Between Crossbills and Conifers
- First Record of the White-Winged Crossbill in California
- Red Crossbill Types in Colorado: Their Ecology, Evolution, and Distribution
- Call Types of the Red Crossbill in the San Gabriel, San Bernardino, And
- Summer Idaho: Cassia Crossbill & Much More!
- Delimitation of Call Types of Common Crossbill (Loxia Curvirostra)
- Birds of Southwestern Idaho
- Loxia Leucoptera)
- PDF (Copies of Maps in the CD ROM Appendix Can Be Requested from the Author
- IMBCR Report
- The Evolution, Ecology, and Decline of the Red Crossbill of Newfoundland
- Loxia Curvirostra
- Curvirostra Polytypic? II. Differentiation Among Vocal Types in Functional Traits
- The Influence of a Competitor on the Geographic Mosaic of Coevolution Between Crossbills and Lodgepole Pine
- European Goldfinch in New York.--On May 27, 1940, Mrs
- Red Crossbill Loxia Curvirostra
- Red Crossbill Percna Subspecies Loxia Curvirostra Percna
- Red Crossbill (Loxia Curvirostra) Call-Types of New York
- On the Relative Importance of Ecology and Geographic Isolation As Drivers for Differentiation of Call Types of Red Crossbill Loxia Curvirostra in the Palearctic
- Origin, Paleoecology, and Extirpation of Bluebirds and Crossbills in the Bahamas Across the Last Glacial–Interglacial Transition
- Western Field Ornithologists December 2020 Newsletter