Figure 36.3: Salt Glands in Marine Birds and Sea Turtles (A) The position of the salt glands in a gull. In a bird, the fluid secreted by each gland enters a duct that empties into the nasal passages. The fluid then exits by way of the nostrils. (B) Fluid secreted by the salt glands exits the external tubular nostrils of a northern fulmar and then drips off the tip of the bird’s bill. (C) Sea turtles, such as this leatherback sea turtle (Dermochelys coriacea), have salt glands, which secrete fluids that drip like tears from the area around the eyes.