The summer range of Grace’s Warbler Dendroica graciae extends as far north and west as southern Nevada. In Nevada it is recorded as a fairly common summer resident in the Sheep Range (Johnson, 1965) and it has also been observed by Jaeger (1927) and Austin (1969) during the nesting season in the Spring Mountains (although both Johnson, and Jaeger himself, have questioned the earlier observation). These two localities are within sixty and thirty miles, respectively, of the California border. D. g. graciae, the race which breeds in the United States, is a fairly long distance migrant; definite winter records of this race in Mexico range from Tepic, Nayarit to Amecameca, State of Mexico and Tres Marias, Morelos (Webster, 1961). Considering its normal range and migratory habits, one may expect Grace’s Warbler to stray into California occasionally.