South Jersey Coastal
Plains, that is……
Can’t get away from the
flatlands lately. After a week out
on the great plains of North Dakota, we find ourselves birding the coastal
plains of south Jersey. As we wend
our way through the sultry heat of the summer season, we find subtle changes in
the natural world. Young baby
birds are slowly maturing and becoming more independent (to a degree). Small flocks of birds are seen moving
south. Signs of initial migratory
movement, or did we just happen to see them when they were flying in that
general direction? When we see
groups behaving this way, like the Cedar waxwings flying in mass with a
seemingly definitive purpose, we assume migration. We also found a collection of Tree swallows which had set in
for a little rest among the reeds of the marsh. Once nesting is complete, these birds become very social.
The tree swallows we saw today
showed signs of molting, and while most birds do not molt during migration,
tree swallows are in the select group which do. After nesting, groups of these swallows will begin migrating
towards Florida and points further south by way of a series of short trips down
the east coast, moving in units of up to 200 miles from one large marsh to the
next. These marshes provide a
great deal of food in the forms of bugs, and believe me, if you have ever been
in the Brigantine NWR in July and early August, you know what we’re talking
about. We found it necessary to
bird from the car with the windows rolled up in order to prevent the little
green-headed monsters from extracting their pound of flesh as we moved through
the wetlands. For more interesting facts on these wonderful swallows, visit http://www.treeswallowprojects.com/cafter.html.
Other products of the
recent nesting period which we had the privilege of seeing this week included
Clapper rails, American oystercatchers, and fluffy little Common yellowthroat
chicks.
Juvenile American oystercatcher |
Common yellowthroat chick |
While the yellowthroats were
among the most diminutive birds we saw on the coastal marshes this week, the
Great black-backed juveniles were already birds of pretty major proportions. With the parent looking down from
above, these two young birds called plaintively looking forward to their next
feeding. I mentioned these two to
Sharon and she looked right past them because I had referred to then as
chicks. “Chick-size” they are not!
As we move through mid-summer,
we will gradually note a changing of the cast of characters which make up the
population along the north-east regions of the coastal plain. The default gull at this time of year
is the Laughing gull. Anyone who
has vacationed along the Jersey Shore during July and August knows that the
raucous call of this part is a major part of the experience. As the seasons march on, these birds
will all but disappear as they head down the coast to warmer climes.
We'll continue to watch the evolution of the natural world here in Brigantine over the next several months knowing that each time we visit, we can expect to find something new.
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