Derek Lovitch, author of How to Be a Better Birder, is still flying high this migration season, spending part of last week along the southern coast of Maine to do some serious birding. In the midst of this ‘rarity season’, Lovitch and his crew recorded some exciting sightings, which he wrote about in this post from his blog, Maine Birding Field Notes.
Each year on the first weekend of November, a group of us get together to scour the Southern Maine coast for vagrants, lingering migrants, pioneers, irruptive, and other seasonal highlights. Coinciding with the peak of “Rarity Season,” we set out to use the geography of the Maine coast, coupled with knowledge of the best habitats and vagrant traps in order to find as many “good” birds as possible. While this year failed to produce any “Megas,” we once again had a great day in the field, found lots of fun stuff, and enjoyed good food and beer at the Great Lost Bear at the end of the day (the real reason we all get together for this event!)
119 species were tallied by the 8 teams of the TENTH Annual South Coastal Maine Rarity Roundup, six species above our 10-year average, despite somewhat more limited coverage than in the past few years. The continuing “Audubon’s” Yellow-rumped Warbler was added to the cumulative checklist, while we also had our second-ever Snowy Egret, Prairie Warbler, and Nelson’s Sparrow. Blackpoll Warbler and Clay-colored Sparrow appeared for the third time.
Most teams experienced a decidedly “birdy” day, especially from Portland through Scarborough. A fallout of Dark-eyed Juncos, White-throated Sparrows, and Hermit Thrushes occurred with overnight northwesterly winds and a line of pre-dawn showers, with the fallout especially evident on the Portland Peninsula. I’ll have more about the fallout on a blog entry later today.
The fallout that I mentioned above was very evident in the morning, as we birded Portland’s East End. 150+ White-throated Sparrows and 100+ Song Sparrows littered the Eastern Promenade. White-throats were everywhere: 50+ on Sheridan Street for example. And once again there was a decidedly disproportionate number of White-throated Sparrows in gardens and landscaping of downtown Portland. A short loop from One City Center through Monument Square, behind Portland High, and back through Post Office Park yielded 35 White-throats, with the only other native migrant being 7 Hermit Thrushes. Like the sparrow, Hermit Thrushes appear in a wildly disproportionate number to other migrants – especially all other thrushes – in downtown Portland. I’m convinced that something causes White-throated Sparrows and Hermit Thrushes to either a) become disoriented by urban lights more often/more readily, especially under low ceilings (it was cloudy for most of the night and morning) or perhaps b) they simply don’t leave these lots in a morning flight as species such as Dark-eyed Juncos might. In fact, I just read in an article in the Brown Alumni Magazine that a friend of the store dropped off about collisions in New York City that since 1997, more White-throated Sparrows have been found dead than any other species. Coincidence?
Our sum of 26 Hermit Thrushes was truly amazing, as was our overall diversity on the day. While the mild weather certainly has a lot to do with the number of lingering/pioneering birds that we, and other teams, encountered, the late-season fallout earlier in the morning certainly helped our cause.
In other words, it was another great day of birding in urban Portland in the heart of “Rarity Season!”
To see the rest of this post on Lovitch’s blog, click here.
And to check out the free downloads we’re currently offering, check out the links below:
Crossley ID Guide Raptors : A sampler raptor guide in PDF format
Quick Finders from The Warbler Guide : A ‘quick finder’ designed to help you identify over 50 warblers faster with targeted color photos.