A personal best

We finally have some more data from 30(05)’s satellite-transmitter, detailing the final part of her migration! On Thursday, Tim reported that she was almost there – she only had 112km (70 miles) left to go. We are happy to report that she made it safely to her wintering grounds on the evening of 10th September. She travelled a total of 162km (101 miles) on her final day of migrating. The next morning (11th September), 30’s position indicated she was sitting on her favourite perch!

30's favourite perch, a few metres inland from the coast

30’s favourite perch, a few metres inland from the coast

 

Then an hour later, she had flown 16km (10 miles) out to sea to go fishing!

30 fishing 11th sept

30 settled quickly on her wintering site

 

This autumn, 30 has indeed set a record. Her 2015 autumn migration took her a total of 264 hours – 3 hours quicker than last year (and the year before)!

She spent 137 of her 264 hours actually flying, which works out as almost 52% of her time! She migrated a total of 4412km (2928 miles), averaging 401km (266 miles) per day.

This table shows the distance 30 travelled each day of her 2015 migration south, and the total hours spent flying.

Day Distance (km) Distance (miles) Time migrating Total hours
1 (31st Aug) 600 372 09:00 – 20:00 11
2 (1st Sept) 831 516 06:00 – 20:00 14
3 (2nd Sept) 389 241 07:00 – 20:00 13
4 (3rd Sept) 411 255 07:00 – 20:00 13
5 (4th Sept) 572 355 06:00 – 21:00 15
6 (5th Sept) 418 260 07:00 – 20:00 13
7 (6th Sept)  305 189 09:00 – 19:00 10
8 (7th Sept) 249 155 09:00 – 19:00 10
9 (8th Sept) 367 228 08:00 – 21:00 13
10 (9th Sept) 413 256 08:00 – 19:00 11
11 (10th Sept) 162 101 07:00 – 21:00 14
Total 4412 2928   137

 

We have mentioned before how we’re amazed by the ability of Ospreys to find their way to their wintering grounds, then remember the way they went and follow a similar route every year. Here is a map which serves to perfectly demonstrate this – it shows the route 30 took on each of her three autumn migrations. It’s remarkable how similar they are!

A comparison of 30's three autumn migrations - look how similar they are!

A comparison of 30’s three autumn migrations – look how similar they are!

 

Here is a table showing the total distance (in kilometres) 30 travelled on each of the three autumn migrations we have tracked her on. This season, she took a slightly shorter, and therefore faster, route.

Day Distance (km) 2013 Distance (km) 2014 Distance (km) 2015
1 568 521 600
2 547 508 831
3 464 516 297
4 257 259 411
5 471 413 572
6 293 536 418
7 330 354  305
8 475 561 249
9 408 351 367
10 328 165 413
11 257 449 162
12 85 53
Total 4483 4686 4412

Ospreys are incredible, and continue to amaze and astound us. We look forward to seeing what 30 gets up to over her winter months, and to following her spring migration home again next March!

Click here to follow 30’s journey on our special map (2015’s autumn migration is the blue line).

Alternatively, click here to follow 30 using Google Earth.

 

5 responses to “A personal best”

  1. KEITH ROGERS

    One Super Osprey.

  2. Peter Howe

    Well done Tim & team, great work

  3. Karen Wylde

    Just fantastic, and it’s great that you get all this info and you share it with us. So interesting and amazing to read.
    Thank you team. Great news to know she’s arrived safely.

  4. Jane Clarke

    This is wonderful news !! An excellent read . Thanks to all the team.

  5. Jane Needham

    Thank you so much for a wonderful summer of watching the osprey family grow up – fabulous viewing!