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قراءة كتاب Additions to the List of the Birds of Louisiana
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Additions to the List of the Birds of Louisiana
and Baines.
Anthus spinoletta pacificus Todd, Western Pipit
The only Louisiana record for this far western race is that of a female taken by me at Jennings, on January 3, 1943. The specimen was sent to Alden H. Miller, who compared it with material in the Museum of Vertebrate Zoölogy and verified the identification. As a rule, I scrutinize closely with binoculars all flocks of pipits, and as a result, on several occasions have detected pale individuals that stood out from the remainder of the flock. However, the above-mentioned specimen is the only individual so detected that I succeeded in shooting.
Vireo solitarius alticola Brewster, Mountain Vireo
Four specimens out of a series of twenty-eight Blue-headed Vireos taken in Louisiana since 1938 are referable to this race. It has not been recorded previously from the state. The specimens consist of a male and a female collected at Bogalusa on February 9, 1939, a male taken at Tunica on March 30, 1939, and a female at Erwinville on March 11, 1941 (Lowery).
Helmitheros vermivorus (Gmelin), Worm-eating Warbler
Although there are no published nesting records of this species in Louisiana, it is now known to be a common summer resident in the beech-magnolia forests of the Bayou Sara-Tunica Hills section north of St. Francisville. Jas. Hy. Bruns has supplied me with copious data on the birds seen in the nesting season at Baines, and the two of us have spent a great deal of time searching for a nest, without success. However, Bruns obtained a juvenile female, just out of a nest, on June 28, 1942.
Seiurus aurocapillus furvior Batchelder, Newfoundland Oven-bird
Seiurus aurocapillus cinereus A. H. Miller, Gray Oven-bird
Four specimens in our series of Oven-birds are identifiable without question as examples of furvior. Two were collected by me at University on September 15 and 25, 1940, and Tucker shot one there on September 27, 1942, and another at Cameron on April 29, 1945. There are also two specimens in the series referable to cinereus, as well as several that are intermediate between cinereus and S. a. aurocapillus. Burdick shot one of the typical examples of cinereus at University on September 24, 1942, and I shot the other at the same place on May 16, 1945.
Seiurus noveboracensis noveboracensis (Gmelin), Northern Water-thrush
Seiurus noveboracensis limnaeus McCabe and Miller, British Columbia Water-thrush
A. H. Miller has recently examined our large series of migrant Water-thrushes and identified three as good examples of limnaeus, and six as noveboracensis, neither one of which has been recorded previously from the state. The specimens of limnaeus were taken at or near University on October 2, 1942 (Howell), October 12, 1943, and May 11, 1945 (Burleigh). The specimens of noveboracensis were collected at University on September 14, 1941 (Lowery); at Baines on September 4, 1943, August 20, 1944, and May 6, 1945 (Bruns); at New Orleans on October 20, 1941 (Burleigh); and at Cameron on April 26, 1942 (Lowery).
Geothlypis trichas occidentalis Brewster, Western Yellow-throat
I have found it impracticable to determine subspecifically every specimen in our series of 104 Yellow-throats from Louisiana. However, two female specimens taken by me, one at Cameron on December 4, 1938, and the other on False River at Lakeland on February 11, 1941, are without doubt representatives of the race now known as occidentalis, a subspecies not previously recorded from this state. Several additional specimens in the series are probably also of that race, but I am deferring, for the time, recording them as such.
Icteria virens virens (Linnaeus), Yellow-breasted Chat
The only winter record for Louisiana is that of a female taken by me at Hackberry on January 24, 1941.
Wilsonia pusilla pusilla (Wilson), Wilson Warbler
The only winter record for the state is that of a female shot by T. D. Burleigh on December 20, 1944, in a thicket along the Mississippi River at University. He first found the bird at this place in November, and he saw it several times in December before he succeeded in obtaining it. Since Oberholser cited so few Louisiana records, it might be well to mention in this connection that the species is after all a fairly common fall migrant in southern Louisiana. At Baton Rouge it occurs regularly between September 11 and October 24, and at Cameron it has been noted between October 17 and November 21. There are still no spring records for southern Louisiana.
Sturnella neglecta Audubon, Western Meadowlark
In 1938 Oberholser cited only two Louisiana records, both from the northwestern part of the state. However, recently the species has been found in the south-central region. Two were collected at Churchill on February 11, 1941 (Lowery and Wallace), and another was shot at University on December 9, 1942 (Burdick). There are in addition several sight records, all of birds in song.
Cassidix mexicanus prosopidicola Lowery, Mesquite Great-tailed Grackle
I am indebted to E. A. McIlhenny for material that now permits the definite recording of this subspecies from Louisiana. On occasions during the winters of 1938, 1939, and 1940, McIlhenny sent me specimens of grackles in the flesh which he had removed from his bird-banding traps at Avery Island. Selection was based primarily on eye-color; individuals with clear yellow irises proved invariably to be examples of prosopidicola, whereas those with brown or yellow-brown irises were always major. The final basis for sub-specific identification was, however, size and plumage color. The series provided by McIlhenny consists of six females taken on November 24 and December 20, 1938, December 18, 1939, January 22 and March 5, 1940. Since the range in Texas of typical prosopidicola extends eastward to within thirty miles of the Louisiana line, it is not surprising that occasional individuals or flocks wander into Louisiana in winter.
Passerculus sandwichensis mediogriseus Aldrich, Southeastern Savannah Sparrow
Passerculus sandwichensis labradorius Howe, Labrador Savannah Sparrow
Passerculus sandwichensis nevadensis Grinnell, Nevada Savannah Sparrow
Our series of 107 Savannah Sparrows, collected in Louisiana almost entirely since the publication of Oberholser's book, includes representatives of five geographical races, as follows: 37 savanna, 24 oblitus, 12 mediogriseus, 8 labradorius, and 7 nevadensis. The remaining 19 specimens show various combinations of characters and appear to be intergrades, and so have not been assigned definitely to any one race. I am indebted to James L. Peters for the identification of most of our specimens. Since mediogriseus and labradorius have not been reported previously from Louisiana, and since there is only one Louisiana record of nevadensis (Miles, Auk, 60, 1943: 606-607), actual dates and localities of occurrence for these races are listed here. P. s. mediogriseus (specimens by Burdick, Howell, Lowery, Ray, Tucker, and Wallace)—University, January 31, 1939; February 11 and 29, April 29, November 28, and December 16, 1940; December 6 and 7, 1941; October 10 and 25, 1942; April 14, 1943. Erwinville, March 11, 1941. P. s. labradorius (specimens by Burleigh, Lowery, McIlhenny, Ray and Wallace)—University, February 15 and November 8, 1940; January 1, 1941; December 11, 1943. 2