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See our science through the images below.

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Landscape showing a levee and ponds to the right side of the levee, with a large bay and towers in the background.
Ecosystem restoration research in South San Francisco Bay.
Ecosystem restoration research in South San Francisco Bay.
Ecosystem restoration research in South San Francisco Bay.

Hilltop view of the Ravenswood ponds (right side of levee) in South San Francisco Bay. These former salt-production ponds were subsequently slated for a major wetland restoration project. 

Image: Feathered Hollow in Living Tree
Feathered Hollow in Living Tree
Feathered Hollow in Living Tree
Feathered Hollow in Living Tree

Hollow in living tree in gallery forest of tributary to Tebicuary river. Grey feathers stuck along bottom of entrance suggest that it may be used by a bird. Paraguay is home to at least 589 breeding bird species and 120 migratory bird species. The Ñeembucú Region is typified by extensive grasslands and wetlands.

Hollow in living tree in gallery forest of tributary to Tebicuary river. Grey feathers stuck along bottom of entrance suggest that it may be used by a bird. Paraguay is home to at least 589 breeding bird species and 120 migratory bird species. The Ñeembucú Region is typified by extensive grasslands and wetlands.

Image: Ant Hill Near Tebicuary River
Ant Hill Near Tebicuary River
Ant Hill Near Tebicuary River
Ant Hill Near Tebicuary River

Ant hill near grassland-forest ecotone near Tebicuary river. This former pasture has not been grazed since an endangered bird species was discovered here half a dozen years ago. The Ñeembucú Region is typified by extensive grasslands and wetlands. Near 26°34’52’’S, 56°49’18’’W. (Guyra Paraguay 2004, Annotated Checklist of the Birds of Paraguay, Paraguay.)

Ant hill near grassland-forest ecotone near Tebicuary river. This former pasture has not been grazed since an endangered bird species was discovered here half a dozen years ago. The Ñeembucú Region is typified by extensive grasslands and wetlands. Near 26°34’52’’S, 56°49’18’’W. (Guyra Paraguay 2004, Annotated Checklist of the Birds of Paraguay, Paraguay.)

Image: Wasp Nest in Gallery Forest
Wasp Nest in Gallery Forest
Wasp Nest in Gallery Forest
Wasp Nest in Gallery Forest

Side view of a wasp nest hanging from tree trunk in gallery forest of tributary to Tebicuary river. The stem-like structure attaching it to the trunk is part of the nest. Diameter approximately 40 cm. The Ñeembucú Region is typified by extensive grasslands and wetlands. Near 26°34’52’’S, 56°49’18’’W.

Side view of a wasp nest hanging from tree trunk in gallery forest of tributary to Tebicuary river. The stem-like structure attaching it to the trunk is part of the nest. Diameter approximately 40 cm. The Ñeembucú Region is typified by extensive grasslands and wetlands. Near 26°34’52’’S, 56°49’18’’W.

Image: Southern Caracaras in Gallery Forest Along Tebicuary River
Southern Caracaras in Gallery Forest Along Tebicuary River
Southern Caracaras in Gallery Forest Along Tebicuary River
Southern Caracaras in Gallery Forest Along Tebicuary River

Caracaras in gallery forest along Tebicuary river. Paraguay is home to at least 589 breeding bird species and 120 migratory bird species. The Ñeembucú Region is typified by extensive grasslands and wetlands. A total of 384 bird species have been recorded in this region, of which two have not been recorded elsewhere in Paraguay. Near 26°34’52’’S, 56°49’18’’W.

Caracaras in gallery forest along Tebicuary river. Paraguay is home to at least 589 breeding bird species and 120 migratory bird species. The Ñeembucú Region is typified by extensive grasslands and wetlands. A total of 384 bird species have been recorded in this region, of which two have not been recorded elsewhere in Paraguay. Near 26°34’52’’S, 56°49’18’’W.

Image: Wasp Nest in Gallery Forest
Wasp Nest in Gallery Forest
Wasp Nest in Gallery Forest
Wasp Nest in Gallery Forest

Underneath view of a wasp nest hanging from tree trunk in gallery forest of tributary to Tebicuary river. The diameter is approximately 40 cm. The Ñeembucú Region is typified by extensive grasslands and wetlands. Near 26°34’52’’S, 56°49’18’’W. (Portion of text from: Guyra Paraguay 2004, Annotated Checklist of the Birds of Paraguay, Paraguay.)

Underneath view of a wasp nest hanging from tree trunk in gallery forest of tributary to Tebicuary river. The diameter is approximately 40 cm. The Ñeembucú Region is typified by extensive grasslands and wetlands. Near 26°34’52’’S, 56°49’18’’W. (Portion of text from: Guyra Paraguay 2004, Annotated Checklist of the Birds of Paraguay, Paraguay.)

Image: Wasp Nest in Gallery Forest
Wasp Nest in Gallery Forest
Wasp Nest in Gallery Forest
Wasp Nest in Gallery Forest

Side view of a wasp nest hanging from tree trunk in gallery forest of tributary to Tebicuary river. The stem-like structure attaching it to the trunk is part of the nest. Diameter approximately 40 cm. The Ñeembucú Region is typified by extensive grasslands and wetlands. Near 26°34’52’’S, 56°49’18’’W.

Side view of a wasp nest hanging from tree trunk in gallery forest of tributary to Tebicuary river. The stem-like structure attaching it to the trunk is part of the nest. Diameter approximately 40 cm. The Ñeembucú Region is typified by extensive grasslands and wetlands. Near 26°34’52’’S, 56°49’18’’W.

Image: White-tailed Prairie Dog Holes
White-tailed Prairie Dog Holes
White-tailed Prairie Dog Holes
Image: White-tailed Prairie Dog (Cynomys leucurus)
White-tailed Prairie Dog (Cynomys leucurus)
White-tailed Prairie Dog (Cynomys leucurus)
Image: Baltimore Oriole Nest
Baltimore Oriole Nest
Baltimore Oriole Nest
Image: Paraguayan Horse Tack and Ranch Hand
Paraguayan Horse Tack and Ranch Hand
Paraguayan Horse Tack and Ranch Hand
Paraguayan Horse Tack and Ranch Hand

Paraguayan cowboys often make their own rawhide tack. The cowboy in this picture is braiding rawhide tied to a tree. The cowboys' quarters can be seen in the background. The typical ranch horse in Paraguay is the "criollo". Paraguayan cowboys use a version of the typical saddle from southern South America.

Paraguayan cowboys often make their own rawhide tack. The cowboy in this picture is braiding rawhide tied to a tree. The cowboys' quarters can be seen in the background. The typical ranch horse in Paraguay is the "criollo". Paraguayan cowboys use a version of the typical saddle from southern South America.

Image: Paraguayan Cowboy
Paraguayan Cowboy
Paraguayan Cowboy
Paraguayan Cowboy

Paraguayan cowboys often make their own rawhide tack. The cowboy in this picture is wearing a fringed cow leather belt and the cowboy pants typical for Paraguay. Near 26°34’52’’S, 56°49’18’’W.

Paraguayan cowboys often make their own rawhide tack. The cowboy in this picture is wearing a fringed cow leather belt and the cowboy pants typical for Paraguay. Near 26°34’52’’S, 56°49’18’’W.

Image: Burrowing Owls
Burrowing Owls
Burrowing Owls
Burrowing Owls

Two burrowing owls perched on ground at Estancia La Graciela near the River Tebicuary, Paraguay. Paraguay is home to at least 589 breeding bird species and 120 migratory bird species. Breeding Status: Breeding permanent resident. Habitat: Grassland, Pasture, Campo Grassland. Estado de ocurrencia: Residente nidificante permanente.

Two burrowing owls perched on ground at Estancia La Graciela near the River Tebicuary, Paraguay. Paraguay is home to at least 589 breeding bird species and 120 migratory bird species. Breeding Status: Breeding permanent resident. Habitat: Grassland, Pasture, Campo Grassland. Estado de ocurrencia: Residente nidificante permanente.

Image: Termite Nest in Pasture in Southern Paraguay
Termite Nest in Pasture in Southern Paraguay
Termite Nest in Pasture in Southern Paraguay
Termite Nest in Pasture in Southern Paraguay

Termite nest in pasture near Tebicuary river. The Ñeembucú Region is typified by extensive grasslands and wetlands. Near 26°34’52’’S, 56°49’18’’W. (Portion of text from: Guyra Paraguay 2004, Annotated Checklist of the Birds of Paraguay, Paraguay.)

Termite nest in pasture near Tebicuary river. The Ñeembucú Region is typified by extensive grasslands and wetlands. Near 26°34’52’’S, 56°49’18’’W. (Portion of text from: Guyra Paraguay 2004, Annotated Checklist of the Birds of Paraguay, Paraguay.)

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