Obviously these demographic parameters do not differ between the sexes. Waterfowl are clearly benefitting from the numerous small, artificial ponds created within the past decade in southwestern Tobago. Birds exhibit a variety of mating systems. This is known as polygamy, which occurs in two forms. Polygyny, the more frequent form, occurs when a male mates with two or more females.
Polyandry occurs when a female mates and bonds with two or more males.
Many of the identifications reported in the SCBA are tentative in nature.