Delaware State Bird: Delaware Blue Hen

Delaware is the only state whose official bird is a domestic chicken. That is not an accident or an oversight — it reflects what the symbol was always about. The Blue Hen is a piece of Revolutionary War memory that happened to be attached to a bird, and the 1939 law was ratifying a cultural phrase that had been in circulation for more than a century before any legislator wrote it down.

The statute names it the Blue Hen Chicken and cites the current code at 29 Del. C. 304. The law gives no description of the bird, no physical criteria, and no breed designation — because the symbol was never about a specific bird. It was about a phrase.

The core story traces back to the Revolutionary era and to Captain Jonathan Caldwell's company in the Delaware Regiment. Delaware and University of Delaware sources agree that the phrase Blue Hen's Chickens grew out of the reputation of those soldiers and their association with gamecocks described as blue hens.

The details vary by source. What the University of Delaware's own history documentation confirms is the connection to Caldwell's company and the Delaware Regiment's fighting reputation. What it does not confirm is a single authoritative origin moment. The phrase attached to the soldiers, spread through military lore, and entered public vocabulary — the exact mechanism is not cleanly documented. What holds steady is the result: Blue Hen became attached to Delaware's military reputation and then stayed in public use.

By the time the General Assembly acted in 1939, the phrase was already well established in Delaware culture. The law did not invent the symbol. It formalized one the state had been carrying for generations.

The phrase Blue Hen's Chickens eventually extended beyond its military origin to become a demonym — a word people used to refer to Delawareans themselves. That cultural reach is what kept the term alive in public vocabulary long after the Revolutionary War context had receded into formal history.

The University of Delaware later adopted the Blue Hen as its athletic mascot, making the symbol one of the few in any state that operates simultaneously as a state emblem, a historical nickname, and a major institutional identity. The Fighting Blue Hens name puts the Revolutionary-era phrase into active use on a different stage — one that keeps it current for audiences who may have no particular interest in state symbolism.

What Delaware preserved in 1939 was not a species designation. It was a piece of local vocabulary that the state had been using to describe itself since the eighteenth century. The University of Delaware's Fighting Blue Hens athletic program now carries the same phrase into a different arena entirely — making the Blue Hen one of the few state symbols that remains in active daily use rather than sitting as a category on a government website.