The Spanish used whatever bows the English, French, and Turks were using...because that's what they could steal/buy. To my knowledge they had no bows all their own.
Gypsies were much the same, but I know that small and easily concealed weapons were the order of the day. A country-less nomad wouldn't be looked upon kindly if caught traveling with a longbow (which would be a very expensive weapon at the time). Hunting would be the primary use so it would be simple and practical. A very basic horsebow. A well-to-do "gypsie" might have a short horn bow, but I'd be it'd be a rarity.
I could be wrong on all of it, though...kind of made it up on the fly.