Info & navigation instructions

When first entering the archive, a calendar appears showing data for a single monitoring station (Barker CSD) and from the Nighthawk 0.3.1 detector (detector name indicated in middle or end of page title). A date with an orange circle indicates that at least one call was detected that night (size of orange circle reflects the number of detections). Clicking on one of the orange circles in the calendar opens an album of the detections for that night at that station (Vesper refers to this as a "clip album"). The album shows a spectrogram for each detection - a visual representation of the sound energy with time on the horizontal axis, audio frequency on the vertical axis, and the loudness indicated by the level of darkness. To listen to a detection, move the mouse over the spectrogram and click the orange play button that appears in the upper left of the spectrogram.

One can use the 3-lined down arrow right of the page title to navigate to see data from five different stations and six different species -- species included in the archive are Dickcissel (DICK), Grasshopper Sparrow (GRSP), Black-and White Warbler (BAWW), Canada Warbler (CAWA), Least Sandpiper (LESA) and Upland Sandpiper (UPSA).

Additional navigation instructions

A clip album is organized into pages, with each page containing the spectrograms of the next batch of detections in the night. Navigation through the pages of a clip album is possible using the two small arrow buttons to the right of the album's title, or by typing the "Shift" and "<" or ">" characters on the keyboard. Navigation is also possible by clicking on the temporal display of detections below the call album title (darkening gray tones equal civil, nautical, and astronomical twilight respectively; dark is night). The numbers labeling the plot are hours of the night, and the plot contains a vertical mark for each detection. The marks for the calls of the page being displayed are magenta, and the marks of other clips are orange. One can navigate among the pages of a detection album by clicking on the plot. As one moves the mouse over the plot, the marks for the calls of the page under the mouse turn green and clicking the mouse leads to that page.