In 2017, the Rarities Committee of the Slovak Ornithological Society/BirdLife Slovakia reviewed 82 records, of which 67 were accepted in the category A, four in category C, two in category D, two in category E. Furthermore four breeding records were accepted and one record is awaiting decision. Two records were rejected. First record of Pacific Golden Plover (Pluvialis fulva) and Orange-flanked Bush-robin (Tarsiger cyanurus), first breeding record of Grey-headed Wagtail (Motacilla flava ssp. thunbergi), one record of Pink-footed Goose (Anser brachyrhynchus), four records of Lesser White-fronted Goose (Anser erythropus), one record of Booted Eagle (Hieraaetus pennatus), two records of Collared Pratincole (Glareola praticola), one record of Great Black-backed Gull (Larus marinus), two records of Gull-billed Tern (Gelochelidon nilotica) and one record of Yellow-browed Warbler (Phylloscopus inornatus) were the most interesting records in 2017. Rarities Committee accepted also some other valuable observations from the years 2013, 2015, 2016 and 2017. For example one record of Black Swann (Cygnus atratus), one record of Canada Goose (Branta canadensis), ten records of Barnacle Goose (Branta leucopsis), seven records of Red-breasted Goose (Branta ruficollis), five records of Egyptian Goose (Alopochen aegyptiaca), two records of Ruddy Shelduck (Tadorna ferruginea), three breeding records of Common Merganser (Mergus merganser), three records of Horned Grebe (Podiceps auritus), one record of Cattle Egret (Bubulcus ibis), one record of Glossy Ibis (Plegadis falcinellus), ten records of Pallid Harrier (Circus macrourus), one record of Greater Spotted Eagle (Clanga clanga), one record of Kentish Plover (Charadrius alexandrinus), one record of Eurasian Dotterel (Charadrius morinellus), one record of Parasitic Jaeger (Stercorarius parasiticus), several records of European Herring Gull (Larus argentatus), one record of Lesser Black-backed Gull (Larus graellsii/intermedius), two records of European Roller (Coracias garrulus), one record of Citrine wagtail (Motacilla citreola), one record of Greenish Warbler (Phylloscopus trochiloides) and one record of Lapland Longspur (Calcarius lapponicus).