Romany children in Poland?

Hi there. I'm a dual citizen of the US and Poland, and DH and I may be temporarily relocating to Germany next year for 3 years. I'd hate to put our adoption journey on hold during this time (we have been trying to adopt domestically independently and via foster care for 2 years), so I'm trying to revisit international adoption. I am told that it is possible to adopt while temporarily abroad. Domestically, we were looking to adopt a Hispanic child. While in Europe, I'd like to consider adopting a Romany ("Gypsy") child. We'll consider either sex, up to about age 8 or so, learning disabilities OK. Even though I was born in Poland, I left as a child and am not up-to-date on certain things. I especially do not know the ethnic make-up of Polish children available for adoption in Poland. Are they all Caucasian? I'll cross-post in general Eastern European thread as well. Dziekuje!