USS Pochard (AM-375) received three battle stars for World War II service. USS Pochard (AM-375) USS "Pochard" (AM-375) was an acquired by the United States Navy for the dangerous task of removing mines from minefields laid in the water to prevent ships from passing. "Pochard" was named after the pochard, a heavy-bodied diving duck. "Pochard" was laid down by Savannah Machine and Foundry Co., Savannah, Georgia, 10 February 1944; launched 11 June 1944; sponsored by Mrs. Mary E. Kennard; and commissioned 27 November 1944, Lt. Comdr. David D. Long, USNR, in command. After fitting out and shakedown, she departed Norfolk, Virginia, for the
Bird vocalization and prevent an energetically costly fight . In birds with song repertoires, individuals may share the same song type and use these song types for more complex communication. Some birds will respond to a shared song type with a song-type match (i.e. with the same song type). This may be an aggressive signal, however results are mixed. Birds may also interact using repertoire-matches, wherein a bird responds with a song type that is in its rival's repertoire but is not the song that it is currently singing. This may be a less aggressive act than song-type matching. Communication through bird