« August 2016 | Main | October 2016 »

Central Park's Oven

In the Ramble of Central Park is an area of the Lake called the Oven.  It has a patch of Jewelweed that attracts Ruby-throated Hummingbirds and Rose-breasted Grosbeaks during the fall migration.  It also attracted a Tennessee Warbler today as well.


2016092401

2016092402

2016092403

2016092404

2016092405

2016092406

2016092407

2016092408

2016092409

2016092410

2016092411

2016092412

2016092413


Fewer Bats

Now that we're in late September that number of bats seems to be declining at the Model Boat Pond.  Tonight I got 8 recordings of Big Brown Bats, 29 recordings of Eastern Red Bats and 29 recordings of Silver-haired Bats. Of course a single bat will have multiple recordings.  These number are a lot fewer than a few weeks ago, although the Silver-haired Bat number are the highest I've seen for this species.

20160922BATS01

20160922BATS02

20160922BATS03

 


Ratio Changes

Tonight, the ratio of Eastern Red Bats to Big Brown Bats recordings was 129 to 38, where last week it was an even split.  But I don't know if it was a change in the number of bats or if the Eastern Reds just hung out longer.  Last week, the Eastern Red Bats came out early, followed by the Big Brown Bats.  Tonight, the Eastern Red Bats stayed until it was very dark.

I have no idea if the number of bats has changed or if the food sources changed.  Unlike Bird Watching, which has a long history of citizen science and great databases (eBirds, Christmas Bird Counts, etc.), there are almost no resources for bats.  There are no hot spot maps for bats for example!  Or online records of when to expect different bat species to be present in Central Park.  This is going to take time to figure out!

20160907BATS01

20160907BATS02

20160907BATS03

20160907BATS04

20160907BATS05

20160907BATS06

20160907BATS07


Pale Male

I caught up with Pale Male after he had raided a squirrel's nest and taken a baby.  Luckily, I arrived after the damage had been done.


20160904RTHA01

20160904RTHA02

20160904RTHA03

20160904RTHA05

20160904RTHA06

20160904RTHA07

20160904RTHA08

20160904RTHA09

20160904RTHA10

20160904RTHA11

 


Model Boat Pond Bats

Tonight there continued to be a large number of bats at dusk flying around the Model Boat Pond. 

(Pale Male roosted on a building a block south of his nest.  He's done this two other nights this week.)

20160903BATS01

20160903BATS02

20160903BATS03

20160903BATS04

20160903BATS05

20160903BATS06

20160903BATS07

20160903BATS08

20160903BATS09

CI5I0265