Author Topic: Netherlands / De Mortel - 2016-19 (Read 8672 times)

dupre501 · « **Reply #21 on:** May 29, 2019, 12:21 »

These three are growing rapidly, and the nest is super disgusting.

dupre501 · « **Reply #20 on:** May 06, 2019, 12:59 »

Three chicks here, well fed.

carly · « **Reply #19 on:** March 20, 2019, 16:54 »

Quote from: dupre501 on March 20, 2019, 12:27

Other peregrines have come to investigate, but have quickly been driven away. There have been no mentions of fights.

Now they have a third egg!

That is good news! Thank you for that

dupre501 · « **Reply #18 on:** March 20, 2019, 12:27 »

Other peregrines have come to investigate, but have quickly been driven away. There have been no mentions of fights.

Now they have a third egg!

carly · « **Reply #17 on:** March 18, 2019, 19:27 »

Quote from: dupre501 on March 18, 2019, 13:06

They have two eggs here.

Things are better this year then? No intruders and battles as in years past?

dupre501 · « **Reply #16 on:** March 18, 2019, 13:06 »

They have two eggs here.

dupre501 · « **Reply #15 on:** February 25, 2019, 13:18 »

The peregrine cams are live once again on the Beleef de Lente site.

https://www.vogelbescherming.nl/beleefdelente/slechtvalk

MayShowers · « **Reply #14 on:** April 04, 2018, 16:27 »

Such sad news RIP Miep-VieVie

Alison · « **Reply #13 on:** April 03, 2018, 12:26 »

The female who killed Miep turned out to be banded 7/C. This makes her a granddaughter of Ma and Pa. She was born in Ittervoort in 2014. Her father is R/4, a son of Ma and Pa, born in 2006.

Before the loss of Miep, I had been watching her as she spent most nights in the nest, looking as if she was preparing to lay her first egg. A necropsy has confirmed that she was indeed about to lay an egg.

I miss seeing her sweet and beautiful face at the nest.

There have been more battles since, and I think 7/C was displaced by an unbanded female. The most recent birds I had seen at the nest were both unbanded.

Now, there is an egg in the nest. It is difficult to know who the parents are.

Alison · « **Reply #12 on:** March 12, 2018, 23:19 »

There is very sad news from De Mortel this evening. Miep-VieVie was killed in a territorial battle today by an intruder female.

There were four peregrines flying around the tower today. In addition to Miep-VieVie, there was an intruder female with an orange band with the letters YC, and another intruder female who is probably the female from a church in nearby Bakel. And then there was Spikkel-VM, who basically stayed in the nest out of the way. There may also be an unbanded intruder male in the area.

The loss of Miep

From Martin Vink this evening, a very sad update, which I translated from the Dutch.

Fight settled?

Martin Vink, Vogelwerkgroep Gemert | Monday, March 12, 2018

In the past two days, an invasion of strange falcons around the De Mortel tower has been observed. These intruders attempt to dislodge or even kill the current male and female. What has happened so far?

The current female V and the male M are already well advanced in their courtship; many copulations have been observed and the female is almost ready to begin laying eggs. She was more and more often seen in the nest box for a longer period of time. However, on Sunday 11 March, several peregrine falcons appeared on the battlefield and late in the afternoon Karin Groen-Dam filmed an attack/battle between two peregrine falcons. For the images, see this link:

https://youtu.be/oPX60CMYarM

As can be seen on these images, both peregrine falcons were locked together and both fell down at the back of the tower.

From this moment on, the current female V, as far as my information goes, was no longer observed in and around the nest box. Given the strength of the attack, it is plausible that the peregrine falcon who was attacked was almost immediately killed by the intruder.

Peregrine falcons are true birds of impact; they surprise their prey by attacking them with great force. During the impact, there is so much energy transfer that it breaks the spine and the prey becomes defenseless.

They frequently attack by biting the prey/competitor in the neck, causing the neck vertebrae to break and death to occur.

But was the peregrine falcon who was attacked the current female V?

Today a strange banded female was seen several times in and around the nest box. This female has a silver-gray leg ring and a colored orange leg ring with possibly the combination YC.

Orange leg rings were used for Dutch birds until 2014. Since 2014, we use gray with three letter combinations. On the roof camera the ring code YC was clearly visible with some certainty. With this shot we also looked from above on the fourth ring for a dead/wounded peregrine falcon. As we already expected, we found a dead peregrine falcon. After zooming in, the falcon appeared to have no bands; could it be the current female V?

In order not to disturb the falcons, tonight, I carefully went up to the fourth ring after 20:00 and removed the dead falcon. The female falcon whom I found had a lot of injuries to her neck, indicating the completion of the lethal attack by the intruder. My suspicion that this is the current female V, I can confirm with some certainty despite the injuries and affected plumage.

Given the position of the attack and the location, it is plausible that the falcon who was attacked in the film is the same falcon.

What now?

As previous territorial battles in the breeding season have shown, a small chance remains that a brood can still be raised. The male M will then have to enter into a pair bond with a new female, which in view of the number of peregrine falcons around the tower and the corresponding disruptions, is still possible in the coming weeks. It is even possible that the current male M himself will also be chased/killed because a strange unbanded male has also been observed.