Wyniki wyszukiwania

1

Numbers of Willow Warbler [Phylloscopus trochilus] at the Tauvo Bird Observatory, related to long-term fluctuations in other bird observatories in Northern and Central Europe

100%

Tynjala M., Ader A., Baumanis J., Leivits A., Ojanen M., Pakkala H., Vilbaste E.

The Ring

|

1995

|

tom 17

|

nr 1-2

2

Spring migration of Willow Warbler [Phylloscopus trochilus] at the Tauvo Bird Observatory, Northern Finland

100%

Tynjala M., Ojanen M., Pakkala H.

The Ring

|

1994

|

tom 16

|

nr 1-2

3

Long-term autumnal trends of migrating land birds in Pape, Latvia

84%

Baumanis J., Celmins A.

The Ring

|

1993

|

tom 15

|

nr 1-2

4

Food of the Willow Warbler Phylloscopus trochilus nestlings: differences related to the age of nestlings and sex of feeding parents

67%

Krupa M.

Acta Ornithologica

|

2004

|

tom 39

|

nr 1

The study was conducted in the Lake Karaś reserve (N Poland), where the density of Willow Warblers in osier and birch thickets reached 28.7-33.3 p/10 ha. Collar rings were used to collect the food brought to the nestlings. 487 food samples were collected from 26 nests, comprising 2573 food items. 167 of the samples were from females (652 individual food items), 95 from males (616 food items). The nestlings were fed mainly on Arthropoda (94.6%) and Mollusca (5.4%). The dominant food items were Diptera (29.8%), Homoptera (28.7%), Ephemeroptera (10.5%), Araneida (7.6%) and Trichoptera, (6.5%). The composition of the dominant food items and the average mass of food deliveries changed markedly with nestling growth. The types of food brought by each sex also varied significantly. Males brought heavier portions of food consisting of larger numbers of lighter prey. However, the composition of these portions was not as diverse as those brought by females. This may be related to differences between males and females in their respective territories and foraging techniques.

5

Stopover ecology of some passerines at Ankara [Central Turkey]

67%

Kesapli Can O., Can Bilgin C.

The Ring

|

2005

|

tom 27

|

nr 2

6

Population dynamics 1961-1990 of common Leaf Warblers [Phylloscopus sp.] at some Central European bird ringing stations

67%

Busse P., Marova I.

The Ring

|

1993

|

tom 15

|

nr 1-2

7

Comparability of wing length measurements based on data collected at two twin stations during migration

51%

Zaniewicz G.

The Ring

|

2012

|

tom 34

Ograniczanie wyników

6 The Ring

1 Acta Ornithologica

2 Baumanis J.

2 Ojanen M.

2 Pakkala H.

2 Tynjala M.

1 Ader A.

1 Busse P.

1 Can Bilgin C.

1 Celmins A.

1 Kesapli Can O.

1 Krupa M.

1 Leivits A.

1 Marova I.

1 Vilbaste E.

1 Zaniewicz G.

1 2012

1 2005

1 2004

1 1995

1 1994

2 1993

Numbers of Willow Warbler [Phylloscopus trochilus] at the Tauvo Bird Observatory, related to long-term fluctuations in other bird observatories in Northern and Central Europe

Spring migration of Willow Warbler [Phylloscopus trochilus] at the Tauvo Bird Observatory, Northern Finland

Long-term autumnal trends of migrating land birds in Pape, Latvia

Food of the Willow Warbler Phylloscopus trochilus nestlings: differences related to the age of nestlings and sex of feeding parents

Stopover ecology of some passerines at Ankara [Central Turkey]

Population dynamics 1961-1990 of common Leaf Warblers [Phylloscopus sp.] at some Central European bird ringing stations

Comparability of wing length measurements based on data collected at two twin stations during migration