194 Kopman, Birds of Louisiana. [ April 



common in fall, occurring chiefly in the early part of October. Recorded 

 somewhat doubtfully at New Orleans, March 27, 1897; earliest authentic 

 arrival, April 14, 1902, Bay St. Louis, Miss. Latest, May 9, 1903, Lobdell. 

 Noted in remarkable abundance at New Orleans the first week in May, 1897, 

 occurring in situations of practically every character, but seen mostly in 

 weedy fields. Earliest arrival in fall, Sept. 22, 1897, Ariel, Miss. 



319. Olive-backed Thrush (Hylocichla ustulata swainsoni). Com- 

 mon transient, especially in fall. Earliest arrival in spring, April 5, 1903, 

 Covington; latest in spring, May 4, 1897, New Orleans. Waves of this 

 species, with Gray-cheeked Thrushes and Veeries, are most apt to be 

 present shortly before and after May 1. Earliest arrival in fall, Sept. 12, 

 1897, Ariel, Miss. Usually becomes common about Sept. 22. Latest in 

 fall, Oct. 31, 1900, Bay St. Louis, Miss. 



320. Hermit Thrush {Hylocichla guttata pallasi). Common winter 

 visitor. Earliest, Oct. 10, 1912, New Orleans; average arrival in southern 

 Louisiana and Mississippi, Oct. 15. Latest date of departure, April 13, 

 1895, New Orleans. Usually leaves first week in April. 



321. American Robin (Planesticus migratorius migratorius) . Num- 

 bers vary decidedly from year to year, especially in the coastal section. 

 Earliest arrival, Oct. 9, 1897, Ariel, Miss.; earliest at New Orleans, Oct. 

 12, 1913. Average date of the first at the coast, Oct. 15. Usually 

 becomes common with first cold weather in November. Few remain at 

 coast latitude after March 15, and the last is usually seen the last week in 

 March. Latest fully authenticated date of departure, April 4, 1906, 

 Biloxi, Miss. 



322. Wheatear (Saxicola oznanthe). The capture of a specimen in 

 the outskirts of New Orleans, Sept. 12, 1888, is recorded by Prof. Geo. 

 E. Beyer, in a list of the birds of Louisiana published in the ''Proceed- 

 ings of the Louisiana Society of Naturalists." 



323. Bluebird (Sialia sialis sialis). Common resident except in the 

 fertile alluvial region of the southeastern section of the State, where it is 

 commonest in winter^and where its occurrence in the breeding season is 

 limited principally tojits presence in occasional colonies about the sugar 

 plantations. 



