An Dair
Tá dhá speiceas dúchasach den dair le fáil in Éirinn - an dair choiteann agus an dair neamhghasánach. Tá siad araon fíorthábhachtach ó thaobh na bithéagsúlachta de. Is féidir leis na scórtha plandaí, ainmhithe agus mamaigh de chineálacha éagsúla a bheith ag fás nó ag cur fúthu ar chrann darach agus le suas le 350 speiceas inveirteabrach. Dearcáin an bia is fearr leis an scréachóg.
Oak
Ireland has two types of native oak: sessile and pedunculate. Both are extremely important for biodiversity. An oak tree can be home to dozens of different plants, birds and mammals, and as many as 350 invertebrate species. Acorns are a favourite food of the jay.