I love
Galina. And no one would know that it means "chicken" in Spanish. I've taken 7 years of Spanish and I didn't know that. The word "pollo" is used for chicken in Spanish - chicken that is eaten. Maybe a "galina" is a chicken walking around? Regardless, know one would know that. And even if it does mean chicken, I don't think it matters.
Galina is such a pretty name. I would not base it on the chicken thing. Isn't it also Russian?