• Shurulinkov P., Ralev A., Tzvetkov P., Valchev K., Daskalova G., Arangelov S., Kolchagov R., Hristov I. & Dimov P.: Endangered birds of old growth forests in the Pirin National Park, SW Bulgaria: habitat preferrences, distribution and population sizes in 2001–2019
• Korňan M.: Structure and diversity of a breeding bird assemblage of a foothills village in the Javorníky Mts. (NW Slovakia)
  

Short communications

• Repel M., Chrašč P. & Palkoci E.: First breeding record of the Alpine Swift (Tachymarptis melba) in Slovakia
• Rubáčová L., Melišková M. & Cepková M.: Five breeding attempts of male Common Kingfisher (Alcedo atthis) during the season consisted of pairing with two females
  
• Flajs T.: Occurrence of the Ural owl (Strix uralensis) in forests of the Malá Fatra National Park (NW Slovakia)
• Krišovský P. & Krišovský P.: The first record of the Oriental Turtle Dove (Streptopelia orientalis) in Slovakia
• Babicová N., Pavlíková J., Babicová R. & Krištín A.: Unusual breeding of the Grey Heron (Ardea cinerea) and Crested Tit (Lophophanes cristatus) in urban environment
  
• Vrlík P. & Dobrota M.: The first documented breeding of the White-tailed Sea-eagle (Haliaeetus albicilla) in the Turiec and Liptov regions (N Slovakia)

• Jenčo M. & Repel M.: Bird-ringing results in Slovakia in 2020
• Rác P. (ed.): Ornithological observations
• Chronicle – Krišovský P.: Not only stork-specialist Miroslav Fulín celebrates a jubilee

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