Answer and Explanation:
Federigo’s gestures of hospitality during Monna Giovanna’s visit reflects one attribute which he had in his former life as a wealthy gentleman: his readiness to squander his most treasured possessions in order to win the affection of the person he loved, which, in this instance, was Monna Giovanna who was already married, had given birth to a child, and even became a widow after losing her husband.
Federigo had squandered his wealth in his former life as a wealthy gentleman; he did so in order to woo and gain the affection of beautiful Monna Giovanna, but he didn't succeed. In fact, Monna Giovanna, who married someone else, had rejected Federigo’s love prior to her marriage because he spent his riches excessively in order to woo her until he became bankrupt, and had only a garden and one last most treasured asset: his falcon.
Killing the bird (falcon) is such a sacrifice for Federigo because, once again, he is giving away or sacrificing his most treasured asset and companion (the falcon) because of his love for Monna Giovanna. Federigo’s sacrifice shows that he is a persistent man, and wouldn’t easily give on the things he really loves.
