"geological study"

#12986704

14 November 2025

The Geological Team from the Bandung Geological Museum repairs one of the ancient bull horns at the Bandung Geological Museum in West Java, Indonesia, on November 14, 2025. In addition to the ancient elephant fossil (Stegodon Trigonocephalus) estimated to be 800,000 years old, the Geology Team also begins preparing and conserving other fossils, such as the ancient buffalo horn fossil discovered in Nganjuk, East Java, in October 2024.

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#12406572

25 May 2025

Gold Country Avian Studies (GCAS) continues bird banding and data collection for the Empire Mine Bird Monitoring Program in Grass Valley, Calif., on May 10, 2025. Nelson gently removes a bird from one of the station's nets to study.

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#12406577

25 May 2025

Gold Country Avian Studies (GCAS) continues bird banding and data collection for the Empire Mine Bird Monitoring Program in Grass Valley, Calif., on May 10, 2025. Nelson gently removes a bird from one of the station's nets to study.

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#12406578

25 May 2025

Gold Country Avian Studies (GCAS) continues bird banding and data collection for the Empire Mine Bird Monitoring Program in Grass Valley, Calif., on May 10, 2025. Nelson gently removes a bird from one of the station's nets to study.

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#12406595

25 May 2025

Gold Country Avian Studies (GCAS) conducts bird banding and data collection for the Empire Mine Bird Monitoring Program while hosting an adaptive workshop for members of the Sierra Services for the Blind and Visually Impaired in Grass Valley, Calif., on May 10, 2025. Nelson shares concerns about potential impacts on avian research if the Trump administration's cuts in biological research at the U.S. Geological Survey (USGS) go through.

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#12406541

25 May 2025

Gold Country Avian Studies (GCAS) continues bird banding and data collection for the Empire Mine Bird Monitoring Program in Grass Valley, Calif., on May 10, 2025. Elsa Chen, a biologist, takes measurements to help select the correct band size.

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#12406546

25 May 2025

Gold Country Avian Studies (GCAS) continues bird banding and data collection for the Empire Mine Bird Monitoring Program in Grass Valley, Calif., on May 10, 2025. Elsa Chen, a biologist, holds a bird gently, using techniques that prevent stress from building in the bird being studied.

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#12406553

25 May 2025

Gold Country Avian Studies (GCAS) continues bird banding and data collection for the Empire Mine Bird Monitoring Program in Grass Valley, Calif., on May 10, 2025. Elsa Chen, a biologist, estimates a bird's age by analyzing its wings.

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#12406554

25 May 2025

Gold Country Avian Studies (GCAS) continues bird banding and data collection for the Empire Mine Bird Monitoring Program in Grass Valley, Calif., on May 10, 2025. Elsa Chen, a biologist, gently fits a band on a bird being studied.

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#12406559

25 May 2025

Gold Country Avian Studies (GCAS) continues bird banding and data collection for the Empire Mine Bird Monitoring Program in Grass Valley, Calif., on May 10, 2025. Elsa Chen and Storm Whitney take and record measurements during bird banding fieldwork.

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#12406560

25 May 2025

Gold Country Avian Studies (GCAS) continues bird banding and data collection for the Empire Mine Bird Monitoring Program in Grass Valley, Calif., on May 10, 2025. Allison Paules Nelson, Executive Director of Gold Country Avian Studies and an ornithologist, mentors and trains volunteers to help with bird banding and collection of data such as species identification, age, and sex.

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#12406561

25 May 2025

Gold Country Avian Studies (GCAS) continues bird banding and data collection for the Empire Mine Bird Monitoring Program in Grass Valley, Calif., on May 10, 2025. Elsa Chen, a biologist, takes weight measurements.

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#12406568

25 May 2025

Gold Country Avian Studies (GCAS) continues bird banding and data collection for the Empire Mine Bird Monitoring Program in Grass Valley, Calif., on May 10, 2025. Allison Paules Nelson, Executive Director of Gold Country Avian Studies and an ornithologist, mentors Storm Whitney to help with bird banding and collection of data such as species identification, age, and sex.

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#12406569

25 May 2025

Gold Country Avian Studies (GCAS) continues bird banding and data collection for the Empire Mine Bird Monitoring Program in Grass Valley, Calif., on May 10, 2025. Storm Whitney estimates a bird's age by analyzing its wings.

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#12406570

25 May 2025

Gold Country Avian Studies (GCAS) continues bird banding and data collection for the Empire Mine Bird Monitoring Program in Grass Valley, Calif., on May 10, 2025. Storm Whitney estimates a bird's age.

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#12406571

25 May 2025

Gold Country Avian Studies (GCAS) continues bird banding and data collection for the Empire Mine Bird Monitoring Program in Grass Valley, Calif., on May 10, 2025. Nelson walks to one of the nets to gather a bird to be studied.

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