Summary of the 2015 season

Time to sum up the 2015 season before the spring migration and the 2016 trapping season starts. 2015 was slightly better at Revtangen BO than the 3 previous seasons, but not by much. It was an odd year, with an extremely cold spring but better than average coverage in September and October. Typical spring species such as Dunnock, European Robin, Common Redstart, flycatchers and several warblers were trapped in lower numbers than usual because there were hardly any trapping conditions in spring. The wader season at Revtangen was not very good, significant numbers were staging in the area only for short period in mid-August.

Bird ringed at Revtangen BO are in the left column. The column "other sites" sums up the ringing we have done at other sites, mostly in connection with the "Urban gull project" (URBPOP). There was also a bit of "holiday ringing" in Finnmak by one of our ringers.

The new pond resultet in record numbers of two species, Green Sandpiper (6) and Grey Wagtail (118). We also trapped an amazing 41 Eurasian Collared Doves, of course another record (14 in 2014 was the best year so far). A more surprising all-time high on Winter Wren with 209, the species has finally bounced back from the population crash in 2010.

Greylag Goose, Canada Goose, Pintail, Mandarin Duck, European Shag, Little Auk and Red-throated Pipit were species ringed for the first time by the Bird Observatory, but none of these were ringed at Revtangen.

Art	Revtangen BO	Other sites	Total
Greylag Goose		2	2
Canada Goose		1	1
European Shag		1	1
European Storm Petrel		14	14
Mute Swan		70	70
Mallard		22	22
Northern Pintail		1	1
Mandarin Duck		1	1
Tufted Duck		19	19
Common Eider		2	2
Goosander		1	1
Eurasian Coot		12	12
Common Moorhen		11	11
Water Rail	5		5
Herring Gull		148	148
Lesser Black-backed Gull		207	207
Great Black-backed Gull		76	76
Common Gull		392	392
Black-headed Gull		159	159
Iceland Gull		1	1
Hybrid Glaucous x Herring Gull		1	1
Arctic Skua		1	1
Eurasian Sparrowhawk	19		19
Northern Goshawk	1		1
Common Kestrel	1		1
Peregrine Falcon	1		1
Northern Lapwing	1	1	2
Eurasian Curlew		3	3
Bar-tailed Godwit	7		7
Dunlin	833		833
Little Stint	32		32
Red Knot	91		91
Sanderling	10		10
Turnstone	46		46
Common Redshank	4		4
Green Sandpiper	6		6
Common Sandpiper	1	4	5
Common Ringed Plover	6		6
Eurasian Oystercatcher	1	7	8
Eurasian Woodcock	2		2
Little Auk	1	1	2
Wood Pigeon	5		5
Eurasian Collared Dove	41		41
European Turtle Dove	1		1
Tengmalm's Owl	4		4
Northern Hawk Owl		1	1
Eurasian Wryneck	1		1
Common Swift	6		6
Shore Lark		4	4
Sand Martin	2		2
Barn Swallow	87	1	88
Tree Pipit	44		44
Olive-backed Pipit	1		1
Meadow Pipit	577		577
Red-throated Pipit		1	1
White Wagtail	17		17
Pied Wagtail	1		1
Grey Wagtail	118		118
Winter Wren	209		209
Dunnock	11		11
European Robin	196		196
Common Redstart	23		23
Bluethroat	1	1	2
Whinchat	4		4
Northern Wheatear	11		11
Greenland Wheatear	5		5
Song Thrush	85		85
Redwing	165	2	167
Fieldfare	94		94
Common Blackbird	203		203
Icterine Warbler	2		2
Blackcap	212	4	216
Common Whitethroat	51		51
Lesser Whitethroat	13		13
Garden Warbler	175	2	177
Barred Warbler	8		8
Grasshopper Warbler	5		5
Reed Warbler	61	1	62
Blyth's Reed Warbler	1		1
Marsh Warbler	1		1
Sedge Warbler	41	5	46
Willow Warbler	303	2	305
Chiffchaff	65		65
Siberian Chiffchaff	8		8
Yellow-browed Warbler	20		20
Goldcrest	565		565
Spotted Flycatcher	12		10
Red-breasted Flycatcher	1		3
Pied Flycatcher	21		21
Long-taild Tit	7		7
Great Tit	51		51
Coal Tit	1		1
Crested Tit	2		2
Blue Tit	147		147
Eurasian Treecreeper	8		8
Common Starling	161	1	162
House Sparrow	331	1	332
Tree Sparrow	166		166
Common Magpie	3		3
Hooded Crow	2	19	21
Common Chaffinch	93		93
Brambling	229		229
European Greenfinch	240		240
Eurasian Siskin	122		122
Common Linnet	150		150
Lesser Redpoll	399	1	400
Mealy Redpoll	1138		1138
Arctic Redpoll	6	1	7
Common Rosefinch	1		1
Eurasian Bullfinch	4		4
European Goldfinch	17		17
Reed Bunting	9	4	13
Little Bunting	1	2	3
Yellowhammer	32		32
Ortolan Bunting	1		1
Totalt	7866	1211	9077