An endangered Everglade snail kite flies off near one of four nests at the
Arthur R. Marshall Loxahatchee National Wildlife refuge (Sun-Sentinel, June 28, 2008)Delray Beach - U.S. Fish & Wildlife
biologists have found nests and recently hatched birds of the endangered
Everglade snail kite in a small wetland in the Loxahatchee National Wildlife
Refuge.
These are the first nests seen in the area since 1998. The rare raptor was
added to the endangered species list when it was created about 40 years ago.
If current trends continue, they could be near extinction in another 40 years,
officials said.
"Every nest, every bird that is produced right now is absolutely critical to
keeping their population sustained through time," said Wylie Kitchens, who
leads a team of researchers that tracks snail kite populations in Florida over
the long term.
Last year, they predicted that about 1,200 snail kites were in Florida. This
year, the population may be somewhere around 700 to 800 birds.
In total, 12 adult snail kites and four nests were
found, one nest with three hatchlings and one nest with three eggs.
The birds are in a 32-acre wetland near the southwest entrance of the
refuge but far from their typical nesting grounds in the more than
100,000 acres of the park's interior. Water levels can be controlled
in the area, which is surrounded by levees, and create optimal nesting
grounds.
"The good news is some of them are finding opportunities. The bad news
is there's not opportunity in the traditional nesting sites," Kitchens
said. "There haven't been any birds to speak of coming out of the
water conservation areas. That spells real trouble."
The hatchlings, which are about a week old, are visible to the public
from the top of a levee. Refuge officials suggest visitors bring
binoculars. The other three eggs should hatch soon, said Cindy Fury,
the refuge's senior biologist.
Florida's snail kite population has been "backed into a corner" by a
variety of influences, said Brian Reichert, a graduate student
involved in the project.
Key among the bird's challenges are recent droughts and water
management efforts. Erratic water levels hamper a delicate and
necessary balance and threaten their main source of food, the apple
snail.
"The highs have been too high and the lows have been too low in one
year so you have these drastic water changes that essentially affect
the snails and decrease the food for snail kites," Reichert said.
Runoff from agriculture and encroachment from development also could be
factors. Kitchens said he is unsure how big a role global warming
plays in the equation today but expects it to exacerbate erratic
weather and water levels in the future.
The bird's best chance, he said, is the
Everglades Restoration Plan which would restore free-flowing
rivers and more natural water cycles.
"The hope is that the restoration initiative will iron some of this
out," he said. "The concern is whether that will happen in time."