Ibirayi bishya

Ibirayi ni ova, bifite amaso, umutuku, umuhondo, umweru cyangwa ibara ry'umuyugubwe, inyama zera cyangwa umuhondo, ibinyamisogwe ni byinshi, uburyohe cyangwa uburyohe. Ibijumba ni ubwoko bwibiryo nimboga, izina ryubumenyi ibirayi, numuceri, ingano, ibigori, amasaka hamwe bizwi nkibihingwa bitanu byingenzi ku isi. Mu Bufaransa, ibirayi bizwi nka “pome yo munsi y'ubutaka”.