Web alarm clock for 4:05 a.m.
Pause the work already in your hands when the 4:05 am alarm sounds, then move your chickens or ducks to a raised coop or another place above the floodwater. You are not starting the task from bed; you need a clear signal to break away from what you are doing and check that every bird is secure. Finishing before 5:00 am leaves less to handle as the night begins to lift.
Because the alarm marks the moment to leave your current job, keep this page open while you work and leave the browser running. If the browser is closed, the alarm cannot sound; a sleeping phone may also keep the alert from telling you to move the birds above the flood level. Set the volume where you can hear it from the yard, and use a separate phone alarm as backup if rising water could make any delay risky.
Once the birds are settled on higher ground, keep the return indoors brief and quiet. At 4:05 am, dim lighting and prepared dry clothes can help you avoid turning the interruption into the start of the day. Put muddy footwear near the door, check that the raised shelter is holding, then leave non-urgent cleanup until daylight so the remaining night can still include some sleep.