Concord , Mass.
1901
July 22
  Clear and very warm with strong S.W. wind.
  Shortly after sunrise this morning a family of
Blue Jays consisting of four or five young with at least
one of their parents came into the oaks near the cabin.
The young as they followed their parents from tree to
tree kept up a succession of squealing cries very like those
of a well-grown pig. They were fully grown and in
flight and actions were indistinguishable from the
old bird. The latter screamed once or twice. I did not
see any of them obtain any kind of food.
Notes of
young Blue Jays
  For a week or more past Yellow-Billed Cuckoos
have been very common although early in the summer
I saw almost none. They are still in full song
at all hours of the day. Two or three haunt the 
tree along the rim near Balls Hill. They seem to
be fond of flying from shore to shore across the
river and its bordering meadows and while on wing
(usually when they are approaching the tree in which they
intend to alight) they frequently utter a toc, toc, toc, toc, toc,
These notes are apparently identical with those which occur
at the beginning of the normal song but instead of being
given in the usual hurried manner are separated by distinct
and sometimes really long pauses. At a distance their flight
calls might be easily mistaken for those which the Pileated
Woodpecker uses under similar conditions i.e. while on wing
and approaching its perch. The normal song varies somewhat.
Sometimes it is toc - toc - toc - toc - toc - toc (very rapidly given)
tan, tan, tan, at other to - to - to - to - to - to, toc, toc, toc.
The tone is invariably hard & wooden, at times almost resonant.
Notes of
Yellow-bill
Cuckoo
Singing on
wing
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