Migration Info This species has shown a dramatic increase in its breeding range as humans have cleared the great eastern forests. Unlike many other eastern birds, this species uses the east coast flyway in both spring and fall. Primarily a trans-Gulf migrant, this is usually among the first of the wood warblers to reach the upper Texas coast in early March. Like many other warblers that winter in Central America, this species associates in mixed flocks during the winter. These roving bands of insect eaters may be composed of several species of neotropical migrants as well as year-round tropical residents.