This was the penultimate cartoon in the Daffy/Speedy series, and the only one where the two are never adversaries at any point in the cartoon.
Daffy's stunts and the scene of him hanging on the clock are a nod to the early screen comic genius Harold Lloyd.
Both characters address each other by their first names in this short.
A much more modern rendition of the opening credit design, as befits the swinging sixties.
Speedy calls Daffy Señor Pato. Pato is Spanish for duck. Spanish is the White/European people's language from Spain, and Speedy only speaks the language of his ancestors' conquistadors, rather than any of the original indigenous languages of Mexico such as (Aztec) Nahuatl or (Mayan) Yucatec, which no one speaks anymore but were widely spoken in Mexico, before colonization by the Spaniards in the 1500s.