Chondestes grammacus , killdeer Charadrius vociferus 12 or 15, mourning doves Zenaida macroura common, cliff swallows Petrochelidon pyrrhonota common, yellow warbler Dendroica aestiva , magpies magpie a few, meadowlarks meadowlark abundant, vesper sparrows Pooecetes gramineus , wren sp. wren , kingfisher kingfisher at St. Vrain St. Vrain Creek , barn swallows