søndag 22. april 2018

Revtangen BO April 22nd

SE light winds around dawn, turning S and increasing from around 9. Rather cold, only 2 degrees at dawn. Nets closed at 11 because of wind and in coming rain. Netmeter hours approx. 1800. 

Ringed: White Wagtail 2, European Robin 1, Common Blackbird 1, Song Thrush 1, Fieldfare 2, Blackcap 4, Willow Warbler 3, Chiffchaff 7, Goldcrest 1, Chaffinch 1, Common Linnet 1, European Goldfinch 1. Total = 25. Also 6 controls. 

Alf Tore Mjös. 2 visitors.

lørdag 21. april 2018

Revtangen BO April 21st

A bit too windy from the W early in the day for trapping. Kept the nets around the feeder open 15.30-18.30, while enjoying myself with washing the floor of the ringing lab. Netmeter hours approx. 280. 

Ringed: House Sparrow 2, Tree Sparrow 1, Chaffinch 2, Greenfinch 1, European Goldfinch 2. Total = 8. Also 15 controls, including a Chaffinch with a British ring and a House Sparrow ringed in 2013. 

Alf Tore Mjös

Revtangen BO April 20th

Nets open 06-17. Light S turning SW, 5-7 m/s. A bit windy most of the time because there is little protection from this wind direction. A bit of work also today: Haavard finished digging holes for the foundation to the new windbreaker wall. Two more nets were put up in the NW, and some repairs were made to the net next to the feeder. The annual fight with the invasive Rosa rugosa kicked off with a systematic removal of remaining shoots on the flower field created two years ago north of the cabin. 

Ringed: Collared Dove 1, Meadow Pipit 1, Dunnock 6, Song Thrush 1, Redwing 2, Common Blackbird 2, Blackcap 4, Willow Warbler 3 (first this season), Chiffchaff 4, Goldcrest 2, Great Tit 1, House Sparrow 1, Chaffinch 7, Greenfinch 3, Common Linnet 1, European Goldfinch 4, Yellowhammer 1. Total = 44. Also 17 controls, including a male Chaffinch ringed as a 1cy in 2009! According to the ringing database it should be the 3rd oldest ever recorded in Norway. 

This male Chaffinch was ringed as a 1cy at Revtangen BO in July 2009, and has not been controlled previously. Bokfink, ringmerket som 1K i juli 2009.

Very few Goldfinches have ever been trapped at Revtangen in spring, so four today was a nice surprise. 2cy male. Stillits, 2K hann.

The first 3 Willow Warblers of the year turned up in the afternoon. As usual with the first wave, all were males. Løvsanger.

Observations: Merlin 1, Green Sandpiper 1, Golden Plover 300+, Whimbrel 1, Tree Pipit 4 migrating north.

Haavard Husebö and Alf Tore Mjös


onsdag 18. april 2018

Revtangen BO April 16th

Nets open 05.30-13.30. Quite a few birds around, blackbirds in particular, but the wind was a bit too strong from the S for efficient trapping. 

Ringed: Common Blackbird 13, Fieldfare 3, Redwing 1, Blackcap 1, Chiffchaff 3, Chaffinch 2, Greenfinch 3, Mealy Redpoll 3, Common Linnet 4, Yellowhammer 1. Total = 34. 

Vemund Opedal

Revtangen BO Aptil 15th

Trapping from 05.30-16.00. Light shifting breeze in the morning, later turning W. Light clouds to sunny, 10-15 degrees.

Ringed: PIED WAGTAIL 1, Dunnock 1, European Robin 7, Common Blackbird 1, Song Thrush 2, Fieldfare 1, Blackcap 1, Chiffchaff 2, Goldcrest 1, Great Tit 1, Treecreeper 1, House Sparrow 1, Chaffinch 2, Brambling 2, Greenfinch 6, Common Linnet 1, Yellowhammer 2. Total = 33. 




 Pied Wagtail. Svartryggerle.

Renate Berg, Atle Espen Helgesen, Jon Andreas Antonsen, Christel Våland Pedersen, Bjørn Mo, Vemund Opedal. 

Revtangen BO April 14th

Trapping from 05.30-13.00, netmeter hours approx. 2200. Light NE later turning N. Light clouds, later sunny. 10-14 degrees. 

Ringed: Collared Dove 1, Dunnock 5, European Robin 16, Common Blackbird 4, Song Thrush 3, Fieldfare 1, Chiffchaff 4, Goldcrest 2, Common Starling 3, House Sparrow 3, Tree Sparrow 1, Chaffinch 14, Greenfinch 5, Mealy Redpoll 2, Linnet 4. Total = 68. Also 12 controls. 

Renate Berg and Atle Espen Helgesen



tirsdag 17. april 2018

Revtangen BO April 10th

Light shifting breese, afternoon-session with nets open 16.30-20. Cloudy, 9-11 degrees.

Ringed: Dunnock 1 (first this season), Common Blackbird 2, Blackcap 1, Chiffchaff 2, Goldcrest 1, Blue Tit 1, House Sparrow 1, Chaffinch 2. Total = 11. Also 12 Controls.

Renate Berg and Atle Espen Helgesen. 2 visitors.

Revtangen BO April 8th

Nets open 0545 - 1300. 6 degrees. Early morning light easterlies, turning SSE and increasing from around 10. A light drizzle around dawn, later cloudy with no rain.
Ringed: Wood Pigeon 1, Collared Dove 1, European Robin 20, Redwing 3, Song Thrush 5, Common Blackbird 2, Blackcap 2 (first this season), Chiffchaff 3 (first this season), Goldcrest 7 (first this season), Common Starling 4, House Sparrow 1, Linnet 1 (first this season), Chaffinch 3, Yellowhammer 2. Total = 55. Also 8 Controls.
First Chiffchaffs and Blackcaps of the season today, the latter on a rather early date. Gransanger (øverst) og Munk.
Renate Berg and Atle Espen Helgesen. 4 visitors.

mandag 2. april 2018

Revtangen BO April 2nd

Another cold morning, minus 3,5 around dawn. Light shifting breeze, NE in the morning turning W. It felt like the spring finally arrived between 10 and 11, when there was a significant temperture rise. The first White Wagtails appeared as fly-owers a few hours later. Nets open 06-16, netmeter hours approx. 2800. 

Ringed: Eurasian Woodcock 1, Wood Pigeon 1, European Robin 1, Common Blackbird 9, Song Thrush 3, Common Starling 14, House Sparrow 2, Greenfinch 5. Total = 36. Also 26 controls. 

Observations: Hen Harrier 1 female by the Gocart range, Sparrowhawk at Hodne. White/Pied Wagtail 2-3 flew over.

Alf Tore Mjøs

Revtangen BO April 1st

Another cold morning, minus 3 around dawn. Light NE turning NNV around 10. Nets open 06-12, netmeter hours approx. 1600. The 3 nets in the NE corner of the trapping area was put up late morning, and one other worn/bleached net was replaced with a new net. 

Ringed: Wood Pigeon 1 (first this season), European Robin 3, Song Thrush 5, Common Blackbird 14, Common Starling 3, House Sparrow 1, Chaffinch 1, Yellowhammer 1. Total = 29. Also 22 controls, including a Yellowhammer ringed as 2cy in March 2012. 

The first Wood Pigeon of the season was ringed today. Ringdue.

Observations: Short-eared Owl 1 by the Gocart range, Song Thrush 15. 

Renate Berg, Espen Helgesen and Alf Tore Mjös. 1 visitor.