Mariana Swiftlet
Mariana Swiftlet
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The Guam Swiftlet is a critically endangered swiftlet species with a very restricted range in the Mariana Islands. This aerial feeder is a vital part of its island ecosystem, though its populations face significant threats.
Where to spot
Primarily found in the Mariana Islands, with its native population on Guam severely impacted. Currently found on Rota and reintroduced to other islands. Look for them around limestone cliffs, caves, and forested areas.
How to spot
Due to its endangered status and limited range, observation is a privilege. Look for fast-flying, dark swiftlets in the specific areas where it is known to persist, particularly near its cave roosts and nesting sites.
When to spot
Active during daylight hours. While observation opportunities are limited due to its rarity, it can be seen year-round within its remaining habitats.
Where to spot
Primarily found in the Mariana Islands, with its native population on Guam severely impacted. Currently found on Rota and reintroduced to other islands. Look for them around limestone cliffs, caves, and forested areas.
How to spot
Due to its endangered status and limited range, observation is a privilege. Look for fast-flying, dark swiftlets in the specific areas where it is known to persist, particularly near its cave roosts and nesting sites.
When to spot
Active during daylight hours. While observation opportunities are limited due to its rarity, it can be seen year-round within its remaining habitats.
Once thought to be nearly extinct on Guam due to predation by the invasive Brown Treesnake, conservation efforts have established populations on snake-free islands, highlighting its resilience. It also echolocates.
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