Scat Squirrels, SCAT!
Bulb plantings are often seen as delicacies to squirrels. After planting, while soil is still loose, place an ordinary window screen over the soil. After soil becomes more compacted, remove the screen. This prevents squirrels from digging up bulbs while allowing air and moisture into the soil. Many bulbs grow well in full sunlight but shady areas may be OK, depending on the bulb. Check planting instructions when purchasing bulbs. Different varieties require different lighting.