Hawks and Bats On Fifth Avenue

On Saturday, after weeks of easy hawk watching, it was harder.  Octavia and Pale Male spent time on the Carlyle Hotel but otherwise were hide to find until dusk.  Pale Male left the hotel and went to a favorite tree on Castle Walk, before roosting near Glen Span Arch.

After dark I listened for bats.  I had listened for bats twice earlier in the week.  As I had those last few nights, I had plenty of Eastern Red Bats at the Model Boat Pond, but I only heard Eastern Red Bats.  On a hunch, I decided to walk to the lawn between the Summer Stage and Fifth Avenue.  There I heard a large number of Big Brown Bats, and a Silver-haired Bat.

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Ruby-throated Hummingbirds

Ruby-throated Hummingbirds are migrating through the city and it's a pleasure to watch them.  How something that small, can be so fast, amazes me even after years of watching them.

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Model Boat Pond Bats

Yesterday, I spent an hour listening for bat echolocations, as well as watching them around the Conservatory Water, aka the Model Boat Pond.  Bats are migrating through the city, and with it getting dark earlier, I don't have to stay out too late!  So the next few weeks are perfect to go bat watching.

Using the Wildlife Acoustics Echo Meter Touch 2 Pro Bat Detector and iOS software, I was able to capture a large number of echolocations.  The software does its best to identify which species of bat it hears, sort of like a Shazam for bats.  The software can make mistakes, so my results could have errors.  While I recorded a great number of bat passes, a single bat could have created many of them.

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Click on either chart to enlarge it.