April 24, 2017

Whip-poor-will, I? Oh yes, I will!


As mentioned in the previous post, there are researchers here from Texas Tech that are placing nanotags on migratory bats. As bats are nocturnal, the researchers must trap at night and sometimes, in doing so, they happen to inadvertently catch a nocturnal bird in their nets. And this past week, they did just that: they caught an Eastern Whip-poor-Will whilst they were trapping for bats and because they're such awesome guys and we've all taken a blood oath when we joined the Motus project, they brought me this amazing bird to band. 

Okay, so I'm joking about the blood oath thing but definitely not about how amazing these birds are! Perhaps you've heard their namesake call which they do continuously on spring and summer nights:


Eastern Whip-poor-wills feed exclusively on insects. They start foraging roughly 30 minutes after sunset and continue until it gets too dark to see their prey. At first light they resume feeding, stopping about 40 minutes before sunrise. When the moon is bright enough, they may hunt all night long. In fact, they are so in tune to the moon that they lay their eggs in phase with the lunar cycle! The chicks hatch on average ten days before a full moon therefore allowing for enough 'light' for the adults to forage for the entire night, capturing an even large amount of insects to feed their newly hatched young. During cold, rainy weather they will not try to forage. Whip-poor-wills can fly almost straight up vertically from a roosting position to catch insects that are often times up to 15 feet off the ground! When in flight, they can also wheel around 180 degrees in between wing flaps!

Whip-poor-wills are awesome birds for so many reasons but did you know that they've experienced a 75% cumulative decline between 1966 and 2015 and are on the 2016 State of North America's Birds' Watch List because of this decline? One of the main causes of this decline is thought to be the loss of open-understory forests. They are also a US-Canada Stewardship species and we're very thrilled to have them breeding here in the park.










Eastern Whip-poor-will banded in South Carolina in 2015.
Check out that HUGE mouth!! 





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