baird's sparrow Centronyx bairdii

One of North America's most sought-after sparrows due to its small breeding range and secretive habits. Breeds in extensive tall grasslands; winters in similar grassy habitats. Pale tan overall with crisp black streaking on breast. Warm buffy face is brightest to the rear of the eyebrow and broken up by thin black markings. Easy to see when perched, singing its high-pitched tinkling trill; otherwise shy and difficult to locate. Population is declining due to development of prime grassland breeding habitat.