Chordeiles minor minor (Forster), Eastern Nighthawk
Since the one previous record (Oberholser, op. cit., 348) of the occurrence of this subspecies in the state now proves to be an example of C. m. howelli, the following specimens, all taken after the publication of Oberholser's book, constitute the only Louisiana records: 4 ♂, 1 ♀, University, October 3, 5, 12, 23, 1941 (Burdick, Howell, Ray, and Lowery); 4 ♂, 1 ♀, University, May 15, 18, 22, 30, 1942 (Burdick and Lowery); 1 ♂, Creole, September 2, 1944 (Burdick).
Chordeiles minor howelli Oberholser, Howell Nighthawk
The only state records known, all previously unpublished, are as follows: 1 ♀, Colfax, May 15, 1937 (Lowery); 2 ♂, 1 ♀, University, May 23 and 24 and October 3, 1941 (Ray and Lowery); 3 ♂, University, May 22 and 25, 1942 (Burdick); 1 ♂, Chloe, 10 miles south, April 28, 1945; 1 ♂, Creole, 2 miles west, April 30, 1945 (Tucker).
Chordeiles minor aserriensis Cherrie, Cherrie Nighthawk
Three specimens, one male and two females, taken from flocks of migrating nighthawks at University on September 29 and October 3 and 9, 1941 (Ray and Lowery), are the only records of the occurrence of this race in the state.
Chordeiles minor sennetti Coues, Sennett Nighthawk
A female taken at University on September 29, 1941 (Burdick), and a male shot at the same place on May 22, 1942 (Lowery), constitute the basis for the addition of this subspecies to the Louisiana list.
Chordeiles acutipennis texensis Lawrence, Texas Nighthawk