‹ Common Birds
Field sketch of a Blue Jay

Everyday in NH

Blue Jay

Cyanocitta cristata · Crows and Jays (Corvidae)

1 — At your feeder tomorrow.
Status
Year-round resident; big visible migration along ridges and the coast in fall
Length
9.8–11.8 in
Regions
Coast · Merrimack · Lakes · The Whites · Conn. River

What you notice first

A loud, slurred "jay! jay!" scream — or a dead-on imitation of a Red-shouldered Hawk that clears every other bird off the feeder for a jay to move in.

Voice

The harsh jay scream, a musical "queedle-queedle" like a rusty pump handle, plus hawk mimicry and a surprising repertoire of soft clicks and whispers near the nest.

Where & when

Oak and beech woods, suburbs, feeders — year-round. September and October, loose flocks stream south past Pack Monadnock and down the seacoast, sometimes a few hundred in a morning.

People underrate the Blue Jay because it is loud and always around. Watch one for ten minutes and that changes. They plant oaks — a single jay caches thousands of acorns each fall, carrying up to five at a time in the throat and gullet, and the ones it forgets become trees. Northern oak forests moved north after the last ice age at roughly the speed a jay flies.

The blue isn’t pigment. There is no blue pigment in any North American bird; the colour is structural, scattered by the feather’s microstructure, which is why a jay feather looks grey-brown when you backlight it.

In fall the migration is real and visible: jays don’t like crossing big water, so they pile up along the coast and the ridgelines, riding the same northwest winds the hawks use.