Laanemaa Bird Club - Recent observations from Western Estonia, links, local checklists, and maps. In Estonian and English. - http://www.llk.ee/
Estonian Ornithological Society - Partner of BirdLife International that supports the conservation, study, and propagation of Estonian birds. Includes list of Estonian birds, Important Bird Areas, and journal Hirundo. In Estonian and English. - http://www.eoy.ee/