Update on Birdsfoot Trefoil (Lotus Corniculatus):
For anyone interested in seeds for this great nectar plant, I mowed over the last of the seeding plants I had to spread them in the yard. I don't have any more seeds. But I've found several places where you can order them on-line from seed companies.
For example:American MeadowsSeedlandCooperseeds
Or just go to your favorite shopping search engine and type in "Birdsfoot Trefoil seeds".