The Los Angeles Zoo is celebrating the arrival of two tropical Snake species and a Blue-throated Macaw, one of the rarest birds in the world.

Photo Credits: Tad Motoyama (1,3,4,5); Ian Recchio (2,6)

Eight Bushmasters, which are venomous Pit Vipers native to Central and South America, hatched in December (second photo from top). This is the fourth clutch of this species to hatch at the Los Angeles Zoo since the first pair of Bushmasters arrived at there in 2008.  The little hatchlings will eventually grow six to 10 feet long and weigh up to 15 pounds. Bushmasters inhabit forests and though their bites can be fatal, these Snakes are rarely encountered by humans.

Unlike Bushmasters, which hatch from eggs, a Mangrove Viper gave birth to five babies on December 26 (third photo from top). In Snakes that give birth to live offspring, the eggs are held inside the body until they hatch, resulting in live birth. This is the first time Mangrove Vipers have reproduced at the zoo. Mangrove Vipers are venomous Pit Vipers that live in India, Bangladesh, and Southeast Asia.

Staff working behind the scenes at the Avian Conservation Center are hand-rearing a Blue-throated Macaw chick that hatched in December (top photo). Normally, the chick’s parents would care for and feed the chick, but they experienced some minor health issues that required medication and could not feed their baby. Staff took over and offer food via a syringe several times a day.

Found only in a small region of Bolivia, fewer than 250 Blue-throated Macaws live in the wild. In the past, these Macaws were heavily exploited for the pet trade. Though this practice has been greatly reduced, trapping still occurs. Today, the Macaws' biggest threat comes from clearing of suitable nesting and feeding trees. These birds are listed as Critically Endangered by the International Union for Conservation of Nature.

See more photos of the Macaw chick and a Bushmaster hatching from its egg below.