Satellite Tracking

We’ll be posting regular updates about satellite tracking projects here on the website. You can also track former projects using Google Earth. Check out our step-by-step instructions to find out how. Alternatively, click here to view the Osprey migration route with Google Maps. Google Maps also shows overhead high resolution satellite images, which is handy for finding places along the route.

She’ll be coming round the mountain…

30(05), our satellite-tagged osprey, is now in Africa! She has been making excellent progress on her autumn migration this season, and is already three-quarters of the way to her wintering grounds! She has been travelling for eight days, and has covered a total distance of 1865 miles / 3002km! As of 5th September at 9pm, she was just north of the border between Morocco and Western Sahara.

Journey so far Sept 2016

30’s journey so far

 

When we last reported 30’s movements, she was in central Spain, heading towards Gibraltar. She made the crossing of the Strait of Gibraltar to the west of the main Strait, at quite a wide angle. Last season she crossed slightly east of Gibraltar. This time, she left Spain at Zahora at 7am on 3rd September, and two hours later made landfall in Morocco at Asilah – a crossing of 48 miles / 77km.

Gibraltar autumn 2016

30’s crossing of the Strait of Gibraltar

 

Perhaps the wind blew her west, away from her usual course over the Strait. Whatever the reason, 30 safely made it to the other side and continued strongly on her southward journey. She roosted just north of the Atlas mountains that evening, then on 4th September headed around them, taking her usual route around the end of the mountains towards Agadir.

Atlas mountains autumn 2016

Skirting the Atlas Mountains

 

She did fly across the very edge of the mountains though, at the western tip, as you can see in the image below!

Autumn 2016 Atlas mountains

Over the end of the mountains

 

30’s next challenge is the Sahara crossing. I wonder whether she will be the other side of it when we next receive data…

 

 

Step by step

Today we received the data for the last two days of 30’s migration – she’s now in central Spain! She continued flying directly south when she set off from her roost site in northwest France at 6am on Wednesday, and by 2pm was passing over Bordeaux. She then followed the coastline along the edge of the Bay of Biscay, and entered Spain in the northeast corner. After entering Spain, she continued to travel in a southwesterly direction, and last night she roosted near a small river, just 3km / 2 miles south of Burguillos de Toledo, 77km / 48 miles south of Madrid.

Over the past two days, 31st August and 1st September, 30 covered 960km / 596 miles, so since leaving Rutland on 30th August, she has travelled a total distance of 1480 km / 919 miles! It won’t take her long to get there at this rate! The images below show her position as of 8pm on 1st September.

1st Sept postion 1st Sept roost site

30 will now be on her way towards Morocco! Both last year and the year before she crossed the Strait of Gibraltar slightly east of Gibraltar itself, making landfall just south of Ceuta, so it’s very likely she will do the same thing again. We will see in a day or so!

Follow her on our interactive map!

 

 

 

Only just begun

We have been checking 30’s satellite data regularly over the past few days, anticipating that she would soon be beginning her southward migration. We are very excited to tell you that she has now set off! A day earlier than last season, 30 left Rutland at 7am on Tuesday 30th August. Twelve hours later, she was 30 miles West of Le Mans in France! That means in her first day of migrating, she travelled a total distance of 520km / 323 miles!

The following map shows the route she took on day one. It’s amazing how directly south her trajectory is. She chose to cross the English Channel at its widest point, instead of heading to Dover and crossing where it’s narrowest, which is the route she usually favours when returning in spring.

30's journey day one south

30’s journey day one

 

We will receive the next batch of 30’s data over the next couple of days. I wonder where she will be by then…

Follow her on our interactive map!

In Manton Bay, we still have both adult ospreys! The dates they left last season are drawing nearer (2nd and 3rd September), so we may only have them around for another day or two. Hurry over to the Lyndon Reserve to see them before they go!

33 with Pike

33 with Pike (photo John Wright)

 

We also still have the long-tailed duck on the Lyndon Reserve, which can be seen from Teal hide.

DSC_0152

Long-tailed duck (photo Paul Stammers)

 

30’s final furlong

More brilliant news arrived this morning – 30(05) is home! As you may know, recently we’ve had a few problems with the satellite-tracking website from which we obtain data on 30. Luckily, for the sake of our sanity, the new data came through this morning to tell us she is now home!

30 arrived back on the evening of Saturday 26th March, 16 days after leaving Senegal earlier this month. The last data point that we had for her was March 24th, at a roost site near the River Bresle. 30 sensibly stayed there for an extra day, presumably to avoid flying through bad weather. She left that spot at 08:00 on 26th March, and crossed the English Channel that morning.

During that day 30 continued on, and arrived back in Rutland at 18:00, having travelled 230 miles (370km) on her last day of migration.

30's final day of migration

30’s final day of migration

 

Here is a breakdown of 30’s 2016 spring migration. She travelled a total of 3,089 miles (4,971km). As you can see, she slowed down a bit towards the end, and did not travel so far each day. This was due to bad weather over the continent, and 30 did the sensible thing by taking it slowly, and staying put for a day on 25th March.

Date Distance (miles) Distance (km)
10th March 167 270
11th March 131 211
12th March 143 230
13th March 217 349
14th March 260 419
15th March 285 459
16th March 251 405
17th March 350 563
18th March 334 537
19th March 172 278
20th March 257 413
21st March 95 153
22nd March 106 171
23rd March 41 66
24th March 50 81
25th March
26th March 230 370
Total 3089 4975
30's entire spring 2016 migration

30’s entire spring 2016 migration

 

Click here to see 30’s journey on our special map.

Alternatively, click here to follow 30 using Google Earth.

 

 

Across the sea

Finally, we have a complete data set for the past five days of 30(05)’s migration! In the latest update, the last data point we had for 30 was her roost site on 16th March, just north of the Atlas mountains in Morocco. On 17th March, 30 continued on her northwards flight path and crossed the Strait of Gibraltar on Thursday afternoon – a crossing of 14 miles.

Gibraltar

30’s route across the Strait of Gibraltar

 

That evening she roosted somewhere in the Sierra Morena mountains. The next day, she made her way steadily through Spain, and by that evening (18th March) she was already north of Madrid.

roost18th march

The next day she continued determinedly on and was on the north coast of Spain by 21:00, where she spent the night. On 20th March, 30 set off around 06:00 and undertook an 11 hour crossing of the Bay of Biscay! 30 usually skirts around the bay and hugs the coast, avoiding a long crossing. Only once before has she flown directly across the bay, and this was on last year’s autumn migration. Based on satellite-tracking data analysis, ospreys generally only cross the Bay of Biscay on their autumn journeys. However, this spring 30 decided to fly directly across, making landfall in France at 5pm on 20th March. This is almost certainly because she felt the need to make up time this year, having been held up by strong easterly winds over Spain, which would slow her progress and also make it difficult for her to stick to her usual course.

Bay of Biscay

30’s flight across the Bay of Biscay

 

You can see from the following map how all except one of 30’s previous migrations have skirted the bay and avoided going directly across it.

Other migrations

 

30 roosted 10 miles inland that evening, at a large lake which we posted a photograph of yesterday.

Lake

On 21st March 30 travelled 95 miles (153km) through France, and last night she was 162 miles (262km) south-west of Paris.

Roost 21st March

Here is a picture of 30’s journey so far.

Journey so far

It may only take her a couple more days to get home! We will keep you updated.

Click here to follow 30’s journey on our special map.

Alternatively, click here to follow 30 using Google Earth.