Very large shorebird that is similar to Eurasian and Water Thick-knees, but with a longer and heavier bill. Also note the gray mid-wing panel without a black-and-white upper border. Immature Eurasian Thick-knees can also have a simpler wing pattern similar to Senegal, and identification of those birds best determined by structure and habitat. More connected to aquatic habitats than Eurasian Thick-knee, but not as much as Water Thick-Knee. Noisy, especially at night, producing a variety of loud whistles and trills.