title: A study of the helminth parasites of overwintering red-winged blackbirds (Agelaius phoeniceus) from Laurel, Maryland.
mesh_terms: D000818:Animals; D001715:Bird Diseases / Q000453:epidemiology*; D001717:Birds; D006373:Helminthiasis / Q000453:epidemiology; D006374:Helminthiasis, Animal; D008396:Maryland; D012621:Seasons