Yes, if you consider it a normal practice to feed your sheep in that manner.
Keep in mind, the burden of proof is on the officer to prove you're not following a normal practice. Seeds on the ground is irrelevant if you're feeding your livestock as you normally do.
If you should get cited, tell the judge exactly what you shared here.
If you're still not sure, consider the following and its source...
"In the course of normal farming and ranching operations, some agricultural seed is left exposed on the ground and can serve as “bait” for migratory birds, including doves. If seed is left out in the open as a “normal agricultural operation,” the law considers this acceptable to hunt over.
A problem arises, however, as to what constitutes a “normal agricultural operation.” For the purpose of the Migratory Bird Treaty Act “normal agricultural operation” means a normal agricultural planting, harvesting, post-harvest manipulation, or agricultural practice, that is conducted in accordance with official recommendations of State Extension Specialists of the Cooperative State Research, Education, and Extension Service of the U.S. Department of Agriculture. [Title 50, Code of Federal Regulations, Part 20.11 (h)]"
Source 
