Connecticut Audbon Society
Osprey Nation

Osprey Nation

2020 marks the sixth season of Connecticut Audubon’s Osprey Nation citizen science project saw increases in the total number of Osprey nests in Connecticut, the number of active nests, and the number of volunteer stewards submitting data to the Connecticut Audubon Society.

Read the 2019 report here.

However there was a decline in the number of young Ospreys that fledged from nests, from 725 in 2018 to 650 in 2019. The previous five years all showed increases in the number of fledglings. 

The reasons for the decline are not clear; several years of data will be necessary to determine if a trend is occurring or if the change in 2019 was random or the result of some other cause.

 

2014

2015

2016

2017

2018

 

2019

 

2020

Stewards

100

146

224

287

314

342

231

Nests with data

174

322

420

540

603

732

733

Active nests

210

250

337

394

416

501

510

Fledglings

NA

356

490

607

725

650

549/744
observed/estimated

Fledglings per nest

 

.69

.80

.89

.93

.81

 

The goal of Osprey Nation is to create a long-term record of data that will give the conservation community a better understanding of the health of Connecticut’s Osprey population.

To view the Osprey Nation map full-screen, click the rectangle in the far right of the gray bar. Gray pins are unmonitored nests; Blue pin is a monitored nest with no reports; Green pins indicate active nests that are being monitored; Red pins indicate monitored nest that has been abandoned; Yellow pins indicate a monitored nest that has failed.

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