24 July 2025
Should you’re lacking hummingbirds at your feeders this yr don’t despair. The perfect eight weeks for ruby-throated hummingbird (Archilochus colubris) abundance in Pittsburgh has simply begun. Juvenile hummingbirds are fledging and migrants will arrive quickly to swell the inhabitants.
Every brood of ruby-throated hummingbird infants consumes about 9-10 weeks of the feminine’s time. Starting along with her arrival in Pittsburgh in late April she engages in …
- Nest constructing for 6-10 days
- Egg laying: 2 eggs laid 1-3 days aside
- Incubation for 12-14 days
- Hatching: Asynchronous. One of many nestlings is oldest.
- Nestling part for 18-22 days till each fledges.
- Fledglings fed by mom: 4-7 days
Egg dates in Pennsylvania vary from 9 Might to twenty-eight August. There’s sufficient time to lift two broods.
By late July the primary broods are on their very own and visiting your feeders. The presence of those juveniles practically doubles the native inhabitants.
Late subsequent week the primary migrating hummingbirds will arrive and additional improve the inhabitants. You may see them ebb and circulation on this animation from eBird Standing and Developments.
The Greatest 8 Weeks has begun! Watch them this summer time. They’ll all be passed by the top of September.
