While I did not see it often or for long, I could certainly hear it constantly, so I took a moment to record his song with my camera which you can hear in MP3 form here.
Apart from being a stunning bird to look at, it is one of the fastest declining songbirds seen in the U.S. It is rapidly losing its wintering grounds in South America and declining throughout its breeding range, possessing a global population of just over 500,000 after dropping more than 80% in the last several decades. Many birders know it to be a particularly tough bird to locate outside of known breeding areas, mostly concentrated in northwest and southeast Connecticut, with a few in the northeast corner. Typical migratory hotspots right on the coast do not pick up the birds, but I am guessing this bird was a migrant based on the location around the clearing on the green and white trail where many other migrant species and birds were feeding. Whether it is "only " a migrant or may actually try to breed somewhere nearby, this is a very important discovery.
There was loads of other wonderful species seen today, but this guy is the current winner for bird of the year for Trout Brook Valley.
All photos and sound © Scott Kruitbosch and not to be reproduced without explicit permission