A breeding season produces a flood of small events — a hen goes broody in the wrong box, eleven eggs go under her, nine hatch, one chick fades in the first week. By autumn, memory has compressed all of it into 'a decent year, mostly.' A season record, kept in the moment, preserves the detail that actually improves a flock: which hens are dependable sitters, which matings give fertile eggs and strong chicks, and where losses really happen.
The broody hen's own record
Give every broody an entry of her own: her identity, when she went broody, and how she behaved through the sit. Note whether she settled quickly or had to be moved, whether she left the nest long enough to chill the eggs, and whether she stole eggs from other hens or lost her own from the nest edge. Some hens are metronomes — they sit tight, turn the eggs, and hatch nearly everything. Others abandon the nest at day fifteen or break eggs through restlessness. You will not reliably remember which was which by next spring, and the hen you trust with your best breeding eggs should be chosen from this record, not from hope.
Eggs set: numbers and sources
For each setting, record the date the eggs went down — in your notes, as the season's timeline — along with the number set, the mating or pen they came from, and whether the eggs were your own flock's, bought in, or swapped. If you candle, note how many were fertile and how many were clear or stopped early. These figures are where breeding problems announce themselves: a cock bird whose eggs are mostly clear, a pen producing weak embryos, or bought-in eggs failing while home eggs thrive. Without the numbers per setting, a poor hatch looks like bad luck; with them, it points at its cause.
Hatch results and chick outcomes
At hatch, record how many chicks came out, how many needed help, and how many eggs were left unhatched — and later, if you open the failures, what stage they reached. Then follow the chicks: losses in the first days, any that grew slowly or showed faults, and how many reached the point of being sold, kept or tabled. This follow-through is the part most keepers skip, and it is the part that completes the judgement on a mating: a hatch of ten means little if six fade by a month old, while six hatched and six thriving is a result worth repeating.
Reading the season back
At season's end the record answers real questions in minutes: which two hens get the important eggs next year, which cock bird is earning his feed, whether the incubator or the broodies hatched better, and what to change about egg storage or timing. Written up as you go, it costs seconds per event.
Those answers are only available if every season lives in one findable place, and KinsLe's Pet Passport keeps a flock's records together in one portable packet — so the notes on last year's broodies are right there when this year's first hen fluffs up and settles in the nest box.