This is Capillaria sp., likely contorta. I don't know why they don't have that option, or any option for these roundworms available. This is 400x magnification.
This is from a fecal I ran this morning on a wild Red-tailed Hawk. It should count because it's an egg of a species I identified this morning and it's from a wild bird. This is a terrible picture because I had to photograph the computer screen hooked up to the microscope; the pics wouldn't upload directly off the scope because I don't think this website supports .bmp images.
Este nemátodo fue encontrado en el sedimento del fondo de un criadero de caracol planorbis corneus