Before we look at the photo, here is some history on, not just the Birch & Declaration Railroad Company (B&DRC), but also how these 2 SDP40Fs landed in their hands to begin with.
The Birch and Declaration line is a rail line in Alabama running from Birmingham to Huntsville. This line was originally used by the Alabama Tennessee and Northern Railroad until they merged with the Frisco railroad in 1971. Frisco decided to abandon this part of the line since they didn't find it necessary, however, since many supplies and such came from this railroad, a railroad commodity that should remain anonymous in partnership with the Southern Railroad formed a Class 2 railroad that would run through this part of the line. After some arguments about the railroad name and opening date, the railroad opened in 1974 and began operations. Although being able to get their own motive power, most of the BDRC's locomotives were leased from the Southern Railroad, and had no modifications paintwise still unifying them as Southern Railroad engines, one of those being SD40-2 #3239, which is seen in the photo below. Some of the SOU engines, including 3239, were purchased by the railroad after Norfolk & Western and Southern merged into Norfolk Southern, while the rest went to NS.
Now, here's where the SDP40Fs come in: In 1981, BDRC was still quite proud of the effort SOU did to let them use some of their motive power, but were looking for engines to run the line fulltime, their first purchases for fulltime engines were 5 GP38-2s #4900-4904, which would later increase to 21 after buying more #4907-4920 as well as some U30Cs, even though they were pleased with those engines, they needed to use a larger engine for much more powerful trains, as the GP38-2s, despite having a tractive effort of 61,000 pounds, only had a power output of 2000hp. When the railroad found out about Amtrak retiring their fleet of SDP40Fs in favor of F40PHs, they asked Amtrak if they could lease a few for service, though Amtrak didn't want any havoc caused on the BDRC due to the derailments the SDP40F roster was quite well known for, they relented, and loaned them numbers 505 and 622. The BDRC converted them to freight service tested them in freight service on intermodal trains and mixed freights, and were quite pleased with their performance in freight service, and purchased them in 1983, and redesignated them as SD40Fs #710 and 711 respectively, and were repainted into a light blue and silver paint scheme, which would soon inspire the Amtrak Phase V scheme, however, in the month of May 2011, to celebrated Amtrak's 40th Birthday, BDRC repainted them back into their original liveries.
These photos are from 1981 when they were tested on a piggyback train. Also included in the case of a derailment is the aforementioned SOU SD40-2 #3239.