The Broody Hen Decision Tree
By Bertie Holcombe, Poultry Editor — Published 15 October 2025 · Last reviewed 5 January 2026
A broody hen is neither a problem nor a miracle. It is a decision point. Here is the framework.
Is she actually broody?
A broody hen stays on the nest for 24 hours or more, flattens herself wide and low when you approach, makes a specific low warning cluck (distinct from the egg-laying announcement), and will peck your hand when you reach under her. She will leave the nest once per day to eat, drink, and defecate — a brood-break of 10-20 minutes — then return immediately.
A hen who simply lays her egg and lingers on the nest for an hour before leaving is not broody. A hen who sits for three consecutive days and has lost weight from reduced eating is definitively broody.
Decision branch 1: Do you want chicks?
If yes: set fertilized eggs under her within 24 hours of confirmed broodiness. Silkies, Cochins, and Buff Orpingtons will sit almost any breed's eggs with equal commitment — I have watched a Silkie mother a clutch of Muscovy duck eggs successfully. Standard incubation is 21 days for chicken eggs.
Collect 6-12 fertile eggs from a trusted source (your own rooster-covered flock, a local hatchery, or shipped eggs). Move the broody hen to a separate pen before setting eggs under her — if she remains in the main coop, other hens will lay in her nest, confusing the egg count and potentially hatching-schedule.
Mortality with a good broody hen: 5-15%. Commercial incubator: 10-20%. The broody hen wins.
Decision branch 2: You do not want chicks
Break the broodiness quickly. Each day in brood reduces the hen's body reserves and delays her return to laying by three days. A hen who brooods for 21 days will resume laying 63 days after breaking — nine weeks of zero production.
The most reliable break method: a wire-bottomed cage elevated off the ground, with food and water. No bedding, no nest material. The airflow under the hen lowers her body temperature, which is the physiological trigger for broodiness (elevated abdominal temperature). Three to seven days breaks most hens. The Silkie is the exception — some Silkie hens will resume broodiness the week after breaking. This is breed character, not a management failure.
Frequently Asked Questions
How do I know which eggs to set under a broody hen?
Candle each egg at day 7 of incubation with a strong LED flashlight in a dark room. A fertile, developing egg will show a spider-web of blood vessels radiating from a dark mass. An infertile egg will be uniformly translucent. A dead embryo will show a blood ring with no vessels. Remove infertile and dead eggs; they will begin to smell and may explode, contaminating the surviving eggs.