Duckling Temperature Chart by Age
Brooder temperature should support comfortable behavior rather than force ducklings to crowd under heat or avoid an overheated area.
Starting Temperature
Newly hatched ducklings generally need a warm brooder zone near 90°F, but they also need room to move away from it. A thermometer at duckling height is more useful than the heater’s setting.
Weekly Reductions
Lower the warm-zone temperature by about 5°F per week as a starting approach, adjusting for room temperature, feathering, breed, and behavior. Never reduce heat by the calendar alone.
Reading Duckling Behavior
Comfortable ducklings spread out, eat, drink, sleep, and move between warm and cool areas. Constant huddling, distress peeping, panting, or pressing against the brooder wall signals a problem.
Safe Heat Sources
A thermostatically controlled brooder plate or securely mounted radiant heater reduces some fire risks associated with hanging heat lamps. Any cord and hot surface must remain unreachable.
When Heat Is No Longer Needed
Fully feathered ducklings in mild, stable conditions may no longer need supplemental heat. Cold nights, wind, rain, illness, or a sudden outdoor move can extend the need.
Use Numbers as a Starting Point, Not a Substitute for Observation
A common starting warm-zone temperature is around 90 degrees Fahrenheit for newly hatched ducklings, followed by a reduction of roughly five degrees per week. Room temperature, breed, brooder size, group size, and feather development can shift that schedule.
Place the thermometer at duckling height and check several locations. The temperature directly under a heater can be very different from the far side of the brooder.
Duckling Behavior Reveals Comfort
Comfortable ducklings eat, drink, sleep, and spread naturally through the brooder. Tight piles, loud persistent peeping, or reluctance to leave the heater indicate cold. Panting, drooped wings, or crowding against the coolest wall indicate overheating.
Drafts create misleading patterns because one side may be cold even when the thermometer appears correct. Shield the brooder while preserving safe ventilation.
Reduce Heat Safely
Lower heat gradually and make one change at a time. A sudden cold night, wet bedding, illness, or a move to a larger space can increase heat needs temporarily.
Supplemental heat can usually end when ducklings are fully feathered and remain comfortable at the actual ambient temperature. Always protect heaters and cords from water, bedding, and curious bills.