# Zygmunt Czarnecki

> Polish ornithologist

**Wikidata**: [Q9392834](https://www.wikidata.org/wiki/Q9392834)  
**Source**: https://4ort.xyz/entity/zygmunt-czarnecki


## References

1. Czech National Authority Database
2. Virtual International Authority File
3. NUKAT
4. MAK
5. Sejm-Wielki.pl