Squirels and Tulip Bulbs
Tulip bulbs are a favorite squirrel delicacy. The only way I’ve found to preserve newly planted tulips is to block access to the squirrels.
Immediately after you plant the bulbs, peg down wire mesh of some sort on the planting area. Choices range from chicken wire to old window screen. If you use the latter, remove it after the leaves sprout.
See “Outdoor Bulbs” - https://s3.wp.wsu.edu/uploads/sites/2073/2014/03/102811.pdf.