From Wiktionary, the free dictionary
ши́бера • (šíbera) m inan or m anim
- inflection of ши́бер (šíber):
- genitive singular
- animate accusative singular
шибера́ • (šiberá) m inan pl or m anim pl
- inflection of ши́бер (šíber):
- nominative plural
- inanimate accusative plural