Kinglets (Regulidae)
Baby ruby-crowned kinglets: from egg to fledgling
A Ruby-crowned Kinglet lays 4–14 eggs. They hatch after 12–14 days, and the young leave the nest 12–19 days later — about 24–33 days from egg to fledgling.
- Eggs per clutch
- 4–14 eggs
- Incubation
- 12–14 days
- Time in the nest
- 12–19 days
- Egg to fledgling
- About 24–33 days
- Broods per year
- 1 per season
- Nest
- Hanging cup high in a spruce or fir
- Uses nest boxes
- No
Stage by stage
- Eggs (12–14 days): 4–14 eggs per clutch. Most songbirds start incubating when the last or second-to-last egg is laid, so the young hatch close together; owls and hawks start with the first egg, so their chicks hatch days apart.
- Nestlings (12–19 days): the young hatch with little or no down and their eyes closed. They grow fast on a diet the parents bring in. In the breeding season ruby-crowned kinglets mainly eat aphids, gnats, spiders and insect eggs.
- Fledglings: after leaving the nest, young ruby-crowned kinglets are fully feathered but short-tailed and clumsy. They spend days to weeks on low branches or the ground while the parents keep feeding them.
- More broods: 1 per season.
When ruby-crowned kinglets nest, state by state
Nesting starts earliest in California (Apr) and latest in Alaska (Jun). Months are estimates from regional breeding data shifted for latitude.
| State / province | Nesting season |
|---|---|
| Alaska | Jun–Jul |
| Alberta | Jun–Jul |
| British Columbia | Jun–Jul |
| California | Apr–Jul |
| Colorado | May–Jul |
| Idaho | May–Jul |
| Manitoba | Jun–Jul |
| Montana | Jun–Jul |
| Nevada | May–Jul |
| New Brunswick | Jun–Jul |
| Newfoundland and Labrador | Jun–Jul |
| Northwest Territories | Jun–Jul |
| Nova Scotia | Jun–Jul |
| Nunavut | Jun–Jul |
| Ontario | Jun–Jul |
| Oregon | May–Jul |
| Prince Edward Island | Jun–Jul |
| Quebec | Jun–Jul |
| Saskatchewan | Jun–Jul |
| Utah | May–Jul |
| Washington | May–Jul |
| Wyoming | Jun–Jul |
| Yukon | Jun–Jul |
Found a baby Ruby-crowned Kinglet?
- Feathered, hopping, can grip your finger: a fledgling. This is a normal stage. Keep pets and children away and watch from a distance; the parents are usually close by.
- Bare skin or only pin feathers: a nestling that fell. If you can see the nest, put it back. Touching it won't make the parents abandon it — that is a myth.
- Injured, cold, covered in flies, or caught by a cat: contact a licensed wildlife rehabilitator. In the US and Canada, ahnow.org finds the nearest one.
- Don't give water or food. Baby birds can choke, and the wrong food can kill them.
More about ruby-crowned kinglets
Frequently asked
How long do baby ruby-crowned kinglets stay in the nest?
About 12–19 days after hatching. Eggs take 12–14 days to hatch, so it is roughly 24–33 days from the last egg to the young leaving.
How many eggs does a Ruby-crowned Kinglet lay?
4–14 eggs per clutch, with 1 per season.
Where do ruby-crowned kinglets nest?
Hanging cup high in a spruce or fir.
What should I do if I find a baby Ruby-crowned Kinglet on the ground?
If it has feathers and hops, it is a fledgling and its parents are almost certainly nearby — leave it. If it is naked or has pin feathers, put it back in the nest if you can. Call a licensed wildlife rehabilitator if it is injured.