Furthermore, some families that occur at lowland sites in South America are very rare and local in lowland forest, or are restricted to middle and higher elevation locations, in Panama and southern Central America; (e.g., Threskiornithidae (ibises), Capitonidae (barbets), and Rhinocryptidae (tapaculos); Ridgely and Gwynne 1989) and, consequently, are not represented at Limbo.