From the 2021-2022 season Lombardy region like other Italian regions it will adopt the frost protocol for the woodcock: this is a fulfillment made necessary by the indications of ISPRA on the hunting calendar and without the adoption of which the calendar would be exposed to vices of illegality. The frost protocol provides for the examination of the average daily temperatures between December and January on a weekly basis on Monday: if the average daily temperature has always been below zero (at least -0,5 ° c) on consecutive days of Friday-Saturday-Sunday and forecasts always give it below zero (at least -0,5 °) for all three subsequent days of Tuesday, Wednesday and Thursday, the collection of the woodcock will be closed until the following Monday (the day on which the temperatures will re-verify).
These are in fact prolonged frost conditions, being necessary that the average daily temperature always remains below zero for a week to proceed with the suspension of the withdrawal until temperatures rise (Source: Federcaccia Lombardy).