These data provide information in support of the creation of a bioenergetic model to estimate winter prey consumption by Barrow’s Goldeneye (Bucephala islandica). One table consists of mass and morphological measurements of wintering Barrow’s Goldeneyes captured or collected in Alaska and British Columbia from 1996 to 2015. The second table consists of size classes of Pacific blue mussels (Mytilus trossulus) consumed by Barrow’s Goldeneye that were collected in Prince William Sound, Alaska in 1996.

These data describe an exercise in which known age and sex class of 100 Barrow’s goldeneyes (Bucephala islandica), determined by expert examination bursa and plumage, was contrasted with age and sex classes estimated from photos by trained observers.

These data describe an exercise in which known age and sex class of 100 Barrow’s goldeneyes (Bucephala islandica), determined by expert examination bursa and plumage, was contrasted with age and sex classes estimated from photos by trained observers.

These data provide morphological measurements and primary feather length measurements of Black Oystercatcher (Haematopus bachmani) captured at several sites across Alaska and British Columbia between 2019 and 2022. The first table contains mass and morphological measurements of body and bill size. The second table provides lengths of individual primary feathers measured from folded wing photographs using a computer software. These feather lengths are to be used in a size-constrained components analysis to calculate wing shape such as pointedness and convexity.

These data provide morphological measurements and primary feather length measurements of Black Oystercatcher (Haematopus bachmani) captured at several sites across Alaska and British Columbia between 2019 and 2022. The first table contains mass and morphological measurements of body and bill size. The second table provides lengths of individual primary feathers measured from folded wing photographs using a computer software. These feather lengths are to be used in a size-constrained components analysis to calculate wing shape such as pointedness and convexity.

This dataset consists of five tables, 1) shorebird morphological measurements collected from various species captured from 1895-2021, 2) taxonomy, 3) contributors, 4) sampling locations, and 5) cross-reference publications. In addition, photographs of plumage patterns are available for several species. Researchers with the U.S. Geological Survey - Alaska Science Center, along with collaborators from many government agencies and research institutions, have studied shorebirds at numerous sites across North America, the Pacific Ocean, Australia, and New Zealand. This release includes over 10,000 observations relating to 35 shorebird species.

This dataset consists of three tables, 1) taxonomy, 2) contributors, and 3) shorebird morphological measurements collected from various species captured from 1977-2021. In addition, photographs of plumage patterns are available for several species. Researchers with the U.S. Geological Survey - Alaska Science Center, along with collaborators from many government agencies and research institutions, have studied shorebirds at numerous sites across North America, the Pacific Ocean, Australia, and New Zealand. This release includes over 10,000 observations relating to 35 shorebird species.

This data package includes 7 child items with data about the seabird abundance, productivity, predator disturbance, morphology of forage fish, and hydroacoustic characteristics at Lower Cook Inlet seabird colonies. Child Item 1: "Predation of Common Murre Eggs at Two Seabird Colonies in Lower Cook Inlet, Alaska". Child Item 2: "Forage Fish Morphology Data from Lower Cook Inlet, Alaska". Child Item 3: "Hydroacoustic Survey Data from Lower Cook Inlet, Alaska". Child Item 4: "Nesting Productivity of Black-Legged Kittiwakes and Common Murres at Two Seabird Colonies in Lower Cook Inlet, Alaska". Child Item 5: "Population Counts at Two Seabird Colonies in Lower Cook Inlet, Alaska". Child Item 6: "Population Plots at Two Seabird Colonies in Lower Cook Inlet, Alaska". Child Item 7: "Common Murre Disturbance Data on Gull Island, Kachemak Bay, Alaska".

This data package includes 7 child items with data about the seabird abundance, productivity, predator disturbance, morphology of forage fish, and hydroacoustic characteristics at Lower Cook Inlet seabird colonies. Child Item 1: "Predation of Common Murre Eggs at Two Seabird Colonies in Lower Cook Inlet, Alaska". Child Item 2: "Forage Fish Morphology Data from Lower Cook Inlet, Alaska". Child Item 3: "Hydroacoustic Survey Data from Lower Cook Inlet, Alaska". Child Item 4: "Nesting Productivity of Black-Legged Kittiwakes and Common Murres at Two Seabird Colonies in Lower Cook Inlet, Alaska". Child Item 5: "Population Counts at Two Seabird Colonies in Lower Cook Inlet, Alaska". Child Item 6: "Population Plots at Two Seabird Colonies in Lower Cook Inlet, Alaska". Child Item 7: "Common Murre Disturbance Data on Gull Island, Kachemak Bay, Alaska".

This data set contains information (in two spreadsheets) from the monitoring of nests of Pacific, Yellow-billed and Red-throated loons at two 64 km2 sites in the National Petroleum Reserve-Alaska (NPR-A) during the summers of 2011-2014. We categorized each nest site by the physical aspects of the lake and proximity to other nesting loons. To determine nest fate (incubating, nest successful, nest failed), nests were revisited and inspected at least once a week. During each nest visit, we estimated embryo development (to predict hatch dates) by floating eggs. Nests were considered successful if one or more chicks hatched.