Established ranges of birds overlaid with eBird sightings of the same species:

• Peregrine falcon: eBird range and determined range overlap = 3.74828%

Figure 1. The established range of the peregrine falcon (Bird Life International, 2016) in blue, overlaid with the eBird peregrine falcon sightings (eBird, 2017) in yellow.

 

• Cedar waxwing: eBird range and determined range overlap = 17.1542%

Figure 2. The established range of the cedar waxwing (Bird Life International, 2016) in light green, overlaid with the eBird cedar waxwing sightings (eBird, 2017) in yellow.

 

• Wood duck: eBird range and determined range overlap = 39.1378%

Figure 3. The established range of the wood duck (Bird Life International, 2016) in magenta, overlaid with the eBird wood duck sightings (eBird, 2017) in yellow.

 

 

 

Figure 4. The overall spatial accuracy of the bird ranges determined from the eBird program compared to determined ranges of the three different species of birds.

• Green areas: high accuracy
• Yellow areas: medium accuracy
• Red areas: low accuracy