Concord, Mass.
1910.
May 25
[May 25, 1910]
  Cloudy with strong, warm, humid S.W. [southwest] wind which brought
light rain in late afternoon.

Only one northbound migrant

  A Black-poll Warbler singing in the oaks & elms near the
house was the only north bound migrant noted here to-day.

Love flight of Ruby throat Hummingbird [Ruby-throated Hummingbird]

He chases female about in dense bushes.
He makes three different sounds at once.

  As I was strolling through the garden about 8 o'clock
this morning I heard the shill [shrill] squeak of a Hummingbird coming
from our syringa hedge. Approaching this I was not a little
surprised to see a [male] Hummer in hot pursuit of a [female] who
was dodging about through the densest possible tangle of twigs
in the very heart of a large Syringa bush. For nearly a minute
the two birds kept up their game of hide and seek without once
showing themselves fairly. They took very short flights - often not more than 2 or 3 feet from twig to twig. Then the [female] emerged with the [male] in 
close chase. She must have returned to the syringa bush after
doubling back (although I did not hear her again) for the 
male quickly came back and began the pendulous low flight
directly over it swinging down and up in a deep curve a