Friday, May 18, 2007

Cueva de Guachara

The 8th Neotropical Ornithological Congress had been going on for three days... We were mainly confined to the grounds of the hotel and beginning to feel a little claustrophobic. The conference planners sensed this potential for restlessness and planned a fantastic field trip experience for mid-week. I embarked on a full day trip to the Cueva de Guacharo and surrounding mountains for birding extraordinare! We left the hotel at 5 A.M. (Planned departure was for 4:30 am but remember nothing happens on time here:). We stopped at one wetland area where we saw water tyrants, neotropical cormorants and striated herons and then were off for the highlight of the day, to see Guacharos, an endemic night bird also known as the oilbird. Guacharos live in caves throughout the Guacharao National Park in northeastern Venezuela. They are a strictly nocturnal bird, exiting the cave at dusk in search of fruit, their main diet. There is one cave that is open to the public. The cave is ginormous (gigantic and enormous) and over 10 kms long. Guided by the light of gas lanterns used by the park rangers, we could only walk in ~1200m but the experience is nothing that can described in words. Huge stalactites and stalagmites and the cacophony of the Guacharo calls to from their roosts on the walls of the cave accompanied us on our walk until we entered the Cuadro de Silencio (silence room) reached through a narrow entrance too small for the Guacharos to navigate. In addition to a loud, low squawk the Guacharos also use a type of eco-location, though much slower than a bats, to navigate in the blackness of the cave. A truly amazing experience.

Monday, May 07, 2007

Revisiting South America

Just a quick note that I'll be heading to Maturin, Venezuela next week to showcase the preliminary results of my research and the 8th Neotropical Ornithological Congress ,http://www.nocvenezuela.org/en/index.cfm. I'll try to share the experience via photos and blog. I recently visited the website of a field site I used in Uruguay, the picture of Laguna de Rocha (Rocha Lake) is breathtaking, see for yourself http://www.lagunaderocha.org/

Thursday, February 08, 2007

The Numbers Are In!

Here is the final tally of shorebird capture in South America. The blood samples remain in Buenos Aires since the airline (Continental) denied me access to the plane with the cryoshippers (http://www.chart-ind.com/litfiles/11550825.pdf). So I continue to wait as patiently as possible for my colleague to ship them back to me. There is a whole lot of work and stress in those barrels, not to mention my Master's thesis. After I get all the samples back on US soil, I'll embark on a final field season this northbound migration in TX and then be in the lab for the summer analyzing my samples. Whoopee!
Table 2: Species and Sample Totals for South America
Species Captures Plasma Footwash Tox Feathers Iso Feathers Reference Exposure
PY AR UY PY AR UY PY AR UY PY AR UY PY AR UY PY AR UY
AMGP P. dominica 47 1 4 41 1 4 32 1 4 33 1 4 41 1 1 26 - 3 16
BASA C. bairdii 1 - 1 - - 1 - - 1 - - 1 - - 1 - - - -
BBSA T. subruficollis 24 - 7 16 - 8 16 - 8 16 - 8 16 - - 15 - 8 1
COPL Ch. collaris 16 1 5 - - 1 - - 1 - 1 14 - 1 8 - - 7 -
COSN G. gallinago 3 - - 3 - - - - - 3 - - 3 - - 3 - - -
LEYE T. flavipes 6 - 2 4 - 2 4 - 2 4 - 2 4 - 2 4 - - -
PESA C. melanotos 42 - 21 21 - 21 21 - 21 21 - 21 21 - 8 - - 13 21
SAPS N. semicollaris 5 - 2 3 - - - - - - - 2 3 - - 3 - 2 -
SOLA V.chilensis 6 - - 4 - - 3 - - 3 - - 4 - - - - - 6
STSA C. himantopus 6 - - - - - - - - - - 6 - - 6 - - - -
TBPL C. falklandicus 4 - - - - - - - - - - 4 - - 4 - - - -
WRSA C. fuscicollis 85 6 45 30 3 35 28 3 32 26 6 47 28 7 40 24 - 7 8
245 8 87 122 4 72 104 4 69 106 8 109 120 9 70 75 - 40 52
The table is a little hard to read without the lines that appear in excel but you can make your way through it!