Daffodils need not worry about rodents and deer, but other bulbs like Tulips and Gladioli are susceptible to some or to others.
These are the villians in the garden:
The vole is a mouse type of rodent who can traverse through gopher holes as well as dig his own.
The pocket gopher eats roots and bulbs but neither Daffodils nor Peonies.
Mole ready to go after grubs and insects and also some bulbs and roots but neither Daffodils nor Peonies.
An effective technique for defeating some of these garden villians are buried plastic crates with holes too small for rodents and large enough for roots to penetrate. The crate is buried up to its rim, dirt is added and bulbs planted normally as to dept and spacing. These crates are what I receive my daffodils in and which pile up each year. If you are closeby, you can pick some up from me!
These bulbs are piled in and not ready to plant but you get the idea! Gophers not interested!