Vilniaus universiteto Ekologijos institutas. – Vilnius : Vilniaus universiteto Ekologijos institutas. Mečislovas Žalakevičius, Irena Žalakevičienė. 2009.
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White-billed — may refer to:* White billed Buffalo weaver, resident breeding bird species in most of Africa south of the Sahara Desert * White billed Crow, short and stocky forest bird with a squared off tail and a relatively large head with a very distinctive… … Wikipedia
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