Glossary & References / Keywords List / Definitions:

Term to be defined Definition Synonyms & Keywords
Cold-sensitive Birds (Category 2.) This term is used in an avicultural context with regard to birds that will suffer, (including frostbite), in prolonged cold spell where the temperature overnight is regularly freezing. Provision of shelter and straw required then.

(See also WWT Waterfowl Management Guidelines - Appendix)