We are a commune of inquiring, skeptical, politically centrist, capitalist, anglophile, traditionalist New England Yankee humans, humanoids, and animals with many interests beyond and above politics. Each of us has had a high-school education (or GED), but all had ADD so didn't pay attention very well, especially the dogs. Each one of us does "try my best to be just like I am," and none of us enjoys working for others, including for Maggie, from whom we receive neither a nickel nor a dime. Freedom from nags, cranks, government, do-gooders, control-freaks and idiots is all that we ask for.
We had a major incoming flight of warblers Friday night, so Sat. morning was full of warbler calls. I only know the calls of the most common warblers, but it is better to learn their calls rather than straining your neck for an hour to peer into the treetops.
Interestingly, that same flight left last night and there is nary a warbler this morning. Birders love those big flights that arrive overnight.
If you have poor memory for bird song, there is an iPhone app for that: Merlin Bird ID. It is not 100% accurate - but what is?
Here in my neck of the woods (SF) a couple of different warbler types show up around February and stay through the middle of April. Thompson's Warbler is the most common. They are very shy, and tend to favor hanging out where there is cover. When it comes to their singing they give the house finches a run for their money.
I also recommend an app called GoBird. It's GPS based, so when you travel you can refresh and see what species are in the new location. Lots of pics of each bird and a nice selection of calls.