Adult Males: Observers from northern Vermont (Milton, Jericho Center),  northern New Hampshire (Colebrook) , and inland northern Maine (Beaver Mtn. Lake)  all reported their last adult male was seen on 8/30 or 8/31.  In Massachusetts, all reports of last sightings of adult males fell between 8/24 and 9/11.  In New Hampshire, the last adult male reported was 9/8.  Along coastal Maine, adult males were reported gone by 8/26 in Lubec, 8/24 in Lincolnville, and 9/3 in Old Orchard Beach.  By September 9, observers from Boothbay, North Haven and Unity  were commenting on "maine-birds" that their [adult] male hummingbirds had been gone for "a couple of weeks" . 

General Migration: In Peterborough, New Hampshire, the Pack Monadnock Raptor Migration Observatory,  run by New Hampshire Audubon, has been observing the hawk migration every day since September 1, and incidentally reporting Ruby-throated Hummingbirds.  The dates on which they reported hummingbirds give a snapshot of the migration over this summit: 9/1 (2 birds);  9/2 (2 birds); 9/5 (5 birds); 9/6 (1 bird); 9/7 (3 birds); 9/8 (1 bird); 9/12 (4 birds). No hummers were reported there after 9/12.

In Connecticut, migration, and preparation for it, was taking place by mid-August, as evidenced by increased numbers and competition around feeders. Don Morgan, in Coventry, wrote on August 23 that

In the last few weeks I've had sudden increase in the number of hummers in my yard.  The most I've figured I had using my  feeders in the past was about 6. Now I have seen as many as 8 at one  time and I'm guessing that 16 to 20 total would be a conservative  estimate.   I have them fighting 3 and 4 at a time over a single  feeder, and often all 8 are in use.  I added 2 to the 6 I had up.  In addition, I'm seeing several hummers  every time I go out for a bird walk, and I used to consider 1 a rare  event. At this time of year I usually start to get new birds coming in to fatten up or already on the way south, but this time I don't think  the others have left, and the new ones are standing in line.

Dana Campell in Hartford reported similarly on 8/24 that there were more hummers than usual in her backyard, and that " last night there was a territory war going on by the back yard feeder."  On 8/18, Dave Rosgen in Litchfield at the White Memorial Museum area, counted 6 hummers, but only 2 and 3 after that day. About all this, Jim Zipp, an experienced CT observer, commented that  "This is peak season for hummers. This is the time of year that people that have them all summer have more, and those that almost never do are seeing them for the first time....The number of adult males is already dropping fast but still plenty around."

On 8/26 at Greenwich Point in Old Greenwich, there was a major swallow and kingbird migration, and with them were 8 Ruby-throated Hummingbirds.  That same day migrating though Lighthouse Point Park (LPP) in New Haven were 18 Ruby-throated Hummingbirds.  On 9/4 at Quaker Ridge Hawkwatch in Greenwich, 10 Hummingbirds were seen migrating through (B. Bielfelt). However, none were reported there on 9/12, 9/15 or 9/16.  Back at LPP migrant hummingbirds were observed on 9/3 (1, G. Hanisek),  9/4 (6, S. Mayo), 9/9 (31, S. Mayo),  9/13 (3, E.J. Raynor & N. Bonomo), 9/17 (5, G. Hanisek), 9/20 (1, J. Jankura), 9/21 (2, D. Campbell), 9/23 ("a good flight", S. Mayo), and 9/28 (1, D. Campbell). After that,  there were no more hummers reported migrating through Lighthouse Point Park.

On 9/17 Jayne Amico in Southington wrote: "Today I was able to see 3 RT hummingbirds at once so there are at least 3 of them still present. They are quite pear shaped with fat packed along their flanks so do not expect these particular guys to be here much longer."  On that day, Diane Tucker in West Hartford and Tammy Eustis in Chester, also still had hummingbirds visiting their yards.  By 9/24 Jayne Amico had only 1 hummer, and her last sighting, a juvenile, was on October 1.  The last date reported for a hummer in western CT was 9/18 in Litchfield, reported by Dave Rosgen.  A late fem/juv was reported in Norwalk on Oct. 6, in the yard of Larry Flynn