The breeding season 2026 has started, our 72nd breeding season!
Marcel E. Visser
We have a new record 🚨 the warm month of march in the Netherlands had its effect on the first laying date of the Great tits! Breaking the record by two days the first egg date this year is 21st March. One blue tit went even beyond that and noted a first egg date on 19th of march! #breedingseason2026
