Unsurveyed area (avian, annual)

The Unsurveyed area (avian, annual) dataset is consumed from an external ArcGIS web service via the following URL and ID

https://mgelmaps.env.duke.edu/mdat/rest/services/MDAT/Survey_Effort/MapServer
ID: 4

OpenLayers

If you are developing in OpenLayers, you will want to use the OpenLayers ArcGIS93Rest class. An example of your solution might look similar to the code below.

layer = new OpenLayers.Layer.ArcGIS93Rest(
    "Unsurveyed area (avian, annual)",
    "https://mgelmaps.env.duke.edu/mdat/rest/services/MDAT/Survey_Effort/MapServer/export",
    {
        layers: "show:4",
        transparent: true
    },
    {
        isBaseLayer: false
    }
);
map.addLayer(layer);