BENTSEN-RIO GRANDE TO GET FACILITIES taken from Texas Parks _ Wildlife Notes
A $302,900 contract has been awarded to Wilson Construction Company for the construction of new facilities at Bentsen-Rio Grande Valley State Park.
The project will include a new headquarters building, a service building, two
restrooms with showers, a restroom renovation, a park residence, 78 trailer
sites, and 15 picnic units,
Bentsen-Rio Grande State Park is a 588-acre park located approximately three miles
southwest of Mission in Hildalgo County. It is a favorite spot for birdwatchers,
and many rare species of birds are found there including Lichenstein's Oriole,
Hooded Oriole, gray hawk, pauraque, groove-billed ani, longbilled thrasher, green
jay, kiskadee flycatcher, and red-eyed cowbird.
The project should be completed in July, 1970.
It was reported in another issue that nature trails would be established so
that visitors would be able to learn of the interrelationship between the unusual plants and the tremendous variety of birds. Two trails are going to be
connected and a guide book prepared.
A NOTE FROM OLD FRIENDS!
Hi! Greetings from Albuquerque! We miss our OG friends considerably: now that
it's fall migration time the urge is rising, but jobs interfere. However, we
do fairly well on week-ends - have added 9 or 10 to the life list already.
Just finished reading Margaret Millar's "The Birds and Beasts were there."
If you haven't read it, you might want to - it's terrific. Has some good words
for T.O.S. and mentions the Freeport Count several times.
There's no OG here, but a N.M.O.S. that we plan to join in October, very loosely
organized, I'm told - monthly publications and semi-annual field notes. Spring
bird trip-field. I'll give 'em the Spoonbill-show 'em how to do it! (Incidentally,
dues are $4,00 yr. with much less offered than OG), If there's anything good
I'll send it along.
Best to all, Dan & Marian Washburn.
Note from editors: Thank you for remembering us, Dan and Marian! Good luck and
let us hear from you soon and often.
COASTAL PESTICIDE STUDIES CAUSE ALARM FOR MARINE SPECIES
taken from Texas Parks & Wildlife Department News Hotes
Seadrift— Concentrations of persistent pesticides from studies conducted by the
Texas Parks and Wildlife Department cause much concern for some marine species and
some bay areas.
Beginning in July, 1965, the Department's pesticide study project samples have
included oysters, forage fish, game or predator fish, and shore birds and their
eggs. So far, monitoring samples have been taken in most of the coastal bay
systems with random samples from the Gulf of Mexico,
All oyster tissue samples analyzed have averaged considerably less than 1 part per
million (ppm) DDT or other pesticides. Forage fish samples analyzed had an average
DDT residue ranging from 0.173 ppm to 31275 Ppm. Samples taken in the Lower Laguna Madre have consistently had the highest residues found in Texas Waters.
The process of biological magnification increases the level of pesticide concentration in living animals. In an illustration of this process, plankton, one-
celled animals and plants, are capable of concentrating pesticide residues found
in seawater by at least 10 fold. Fish or oysters feeding on contaminated plankton
will increase this level at least another 10 fold, and so on, up the food chain
through the predator fish and birds, and eventually to man.
Fortunately, in most cases this "concentrated" amount is still much below the level
where damage occurs to a species, or where there is danger from consuming one of