It seems that Secret Santa did his homework and found out what I liked.

Hats off to you, my friend. But I am still wondering what you meant in the letter:

"Cuando las gaviotas siguen al arrastrero, es porque piensan que van a arrojar sardinas al mar."

"When the seagulls follow the fishing charter, it's because they think that they are going to throw the sardines to the water..." (Or something like it. Some sayings can't be translated)