Build the Leghorn kit around blood and bullying
A Leghorn first aid kit should hold saline wound wash, gauze and pressure pads, light cohesive wrap, small scissors, disposable gloves, a clean towel for wrapping the bird, and a ready isolation crate, with your vet's number in the lid. The priorities come straight from the breed: a Leghorn is a light, athletic, high-output layer with a big, floppy comb, especially in hens, and comb tissue bleeds copiously from a small nick. Worse, chickens are drawn to peck at blood on a flockmate, so a minor comb tear becomes a serious wound quickly if the bird stays in the pen; your kit exists to clean, press, and separate within minutes.
Handling a flighty bird is a supply problem too
Leghorns are famously skittish and strong fliers for a laying breed, so include the means to catch and hold one calmly: a towel for wrapping wings against her body, a dim, quiet crate ready assembled, and a torch for checking her over without chasing her around the run. Chasing a bleeding Leghorn exhausts her, restarts the bleeding, and teaches the whole flock that handling means panic. Work at roosting time when you can, since a Leghorn taken off the perch in the evening is calmer and easier to examine thoroughly, including under the wings and around the vent, where pecking damage hides under feathers.
Cleaning and dressing wounds on a small hen
Rinse a Leghorn's wound with saline, apply steady pressure with gauze until bleeding slows, and cover anything open before she goes back anywhere near the flock, because even a blood-specked feather invites attention. Keep dressings minimal on the body, since chickens work wraps off and a bandage that slips can trap a leg; the comb usually needs pressure and time rather than a wrap at all. Check a healing wound daily for the sour smell, heat, or swelling that suggests infection, and keep the bird separated, with food and water she does not have to compete for, until feathers or new skin fully cover the area and no red shows.
Eggs, appetite, and the notes that belong with the kit
Keep a pencil and card in the Leghorn kit for two observations that matter with a production layer: whether she is laying, and whether she is eating and drinking normally in isolation. A Leghorn who stops laying abruptly while straining, standing penguin-like, or sitting in the nest for hours may have an egg problem rather than an injury, and that distinction changes the urgency of your vet call entirely. Recording laying pauses alongside treatments also protects the rest of the flock, because a run of vent pecking injuries in your notes usually points at boredom, crowding, or protein shortfalls in the pen rather than at unlucky hens.
Leghorn emergencies that need a vet today
Call your vet if a Leghorn's bleeding will not stop with pressure, if a wound is deep, torn, or around the vent, if she is straining with a swollen abdomen, breathing with her beak open, or too weak to stand and grip. A hen found limp and unresponsive in the nest box is an emergency regardless of what the kit holds. Bringing the vet a clear record of when she last laid, what you cleaned, and how she responded helps enormously, and KinsLe Pet Passport keeps those Leghorn notes and her history together in one packet rather than on feed-sack scraps by the coop.