April 16
Juan fulfilled his weekly visit to the landfill coming Pinto on the morning of April 16.
entered the landfill at 7:50 am, with cloudy skies and high clouds (and remained throughout the morning, though some light was allowed to see the sunrise), 11 º C temperature and cool breeze NE.
continues the slow decline of gulls with dark figures around 1000-1500 copies and a laughing 800-1000. Almost complete prenuptial step bleak, as evidenced by the lack of renewal of banded individuals observed on the previous weekend.
On the other hand, the percentage breakdown by age (80-85% of early winter, 15-20% of second Winters, 1-2% of third winters and only 1-2 EJS. full adult) notes the predominance of hard-pressed to return birds to their breeding colonies, some of which potential holidaymakers. Keep going
a significant number of adults laughing, more interested in tasks courtship / mating, no ring, suggesting they belong to nearby breeding colonies.
greatly increase the cattle egret, with its colorful livery, bridal, over 200 individuals, but only 24-25 white storks see Pinto left yesterday, and no ring.
April 19
Juan took one day holiday approaching Pinto, now that the high season ends until the August surge in Colmenar.
entered the landfill at 7:45 am, the sky is partially covered and 11 º C temperature. Minutes before 10:30 h. general was raised just 100 laughing again settle in a place inaccessible. The first drops fell as he left the landfill at 11:00 am, a prelude to the heavy downpour that accompanied his return home.
continuing decline of gulls present (about 1,000 and about 500 grim laughing) and the percentage increase in early winter (85-90%).
contrast, continues to increase the number of cattle egrets or black kites and remains low number of white storks (about 20 copies, no banding).
Gull
With 22 readings on 16 and 13 on day 19, observed a curious part leucismo first winter. Roland De
-Jan Buijs : Black
3S
New to us. Black
63
New to us.
gull with black ring 01 in Colmenar Viejo on September 5, 2010 Photo: Delfin Gonzalez
NN
Black New for us. 5Y
Black New for us.
Rock : Grey A + T
New to us.
with blue ring Gull NV · AT in Colmenar Viejo, 11 October 2010. Photo: Delfin Gonzalez
De Sönke Martens : Yellow
H.C30
New to us.
Of the Norwegian banders : Black
JZE2
our previous records with 5 in October and November 2009.
gull with black ring JZE2 in Colmenar Viejo on October 11, 2009 Photo: Delfin Gonzalez
De Kjeld T. Pedersen :
Of the 8 different individuals located between the two days, only a remarkable, that we will not mention as usual.
laughing gull
ringed with a single copy, of Russian origin, was already known.
Yellow-legged Gull
On April 16, located the following examples: First winter
: 3
Second Winter: 2
On April 19, located the following examples: First winter
3-4 Second
winter: 1
Gull On 16 April, a first winter with badly damaged wing coverts
Gulls On 16 April, a copy of the second winter.
0 comments:
Post a Comment