PINE WARBLEE. 93 



any specimens been received from the Florida lighthouses. During 

 February, 1902, a pine warbler was taken by one of the parties of the 

 Biological Survey at Matamoras, Tamaulipas. This is probably the 

 first record of its occurrence in Mexico or at any other point outside 

 the United States, except for a casual occurrence in the Bermudas. 



Spring migration. — The pine warbler is one of the first of the fam- 

 ily to migrate in spring. Migrant birds are seen in March over most 

 of the winter range and even to Washington and eastern Pennsylvania. 

 The average date of spring arrival at Boston is April 10, and in south- 

 ern New Hampshire April 13. In the Mississippi Valley migration 

 seems to be a few days later than east of the Alleghenies. The species 

 reaches St. Louis and central Indiana not much before the middle of 

 April. Grand Kapids, Mich., is reached, on the average, April IT; 

 Chicago, April 21; Ottawa, May 15, and Lanesboro, Minn., April 29. 



Fall migration. — Though arriving early in spring, the pine warbler 

 is slow to disappear in fall. It starts south sufficiently early, for it 

 leaves the northern part of its range by the middle of September. 

 But it passes latitude 39° as late as the first half of October, and is 

 scarcely settled in its winter home before the 1st of November. An 

 unusually late migrant was seen at Ottawa October 10, 1891. 



This is one of the few warblers of the eastern United States whose 

 winter home is included in its breeding range. During the winter 

 season the pine warbler occupies approximately the southern third of 

 the breeding range; hence it is not surprising that the birds are found 

 to be more common there in winter than at any other time of the year. 



672. Dendroica palmarum (Gmel. ). Palm Warbler. 



Breeding range. — This western form of the species breeds north of 

 Manitoba and west of Hudson Baj^ to at least Fort Churchill, Fort 

 Resolution, and Fort Simpson. While there appear to be no records 

 as yet of its breeding in Manitoba or Minnesota, it has been seen in 

 these localities so late in spring and so early in fall that it will prob- 

 ably be found nesting throughout most of the mountainous districts 

 from northeastern Minnesota northward. 



Migration range. — Passing south through the Mississippi Valley 

 the bird is a common migrant on both sides of the Mississippi River. 

 To the west it ranges to eastern Nebraska and eastern Kansas, and it 

 has been noted as accidental in Colorado, Montana, and California. 

 It is less common in Kansas than in Nebraska, for the route mainly 

 traveled turns in the latter State to the east toward Florida. East- 

 ward the species ranges regularly to the Allegheny Mountains, and a 

 few individuals wander each fall to the Atlantic coast, as far north as 

 Washington, D. C, or occasionally to New England. 



Winter range. — The palm warbler is abundant in winter in all the 

 Bahamas and in Cuba and Jamaica, and is present, though less com- 



