ORNIS FENNICA 是由 BIRDLIFE FINLAND 出版的经同行评审的国际鸟类学期刊。 ORNIS FENNICA 发表关于鸟类生态学、行为和生物地理学的分析和实验论文。 ORNIS FENNICA 更喜欢有关 FENNOSCANDIAN 物种的研究，但也欢迎其他具有普遍兴趣的新颖贡献。ORNIS FENNICA 是一本开放获取期刊，不收取出版费。所有发表的文章（从 1924 年起）都可以从期刊网站免费获得。第一个决定通常在提交后三个月内做出。

Ornis Fennica is an international ornithological journal published by BirdLife Finland, which is peer-reviewed. The journal publishes analytical and experimental papers on bird ecology, behavior, and biogeography. While Ornis Fennica prefers studies on Fennoscandian species, it also welcomes novel contributions of general interest. The journal is open access and does not charge publication fees. All articles published since 1924 are freely available on the journal's website. The first decision is usually made within three months after submission.

《Ornis Fennica》是由芬兰鸟类保护协会（BirdLife Finland）出版的国际鸟类学期刊，经过同行评审。该期刊发表关于鸟类生态学、行为学和生物地理学的分析和实验研究论文。虽然《Ornis Fennica》更倾向于发表关于芬诺斯堪的物种的研究，但也欢迎其他具有普遍兴趣的新颖贡献。该期刊为开放获取，不收取出版费用，所有自1924年以来发表的文章均可在期刊网站上免费获取。通常在提交后的三个月内会做出第一次决定。

Ornis Fennica

The newly released textbook, Ecology and Conservation of Mountain Birds (edited by Chamberlain, Lehikoinen &amp; Martin), provides a comprehensive review of the latest knowledge in alpine ornithology. It summarizes the combined knowledge of over 50 subject experts and serves as an excellent reference guide for professionals and students. Here, the layout and contents of the book are reviewed and an unbiased general assesment of the contents are provided. As the global environment continues to see unprecedented changes, this work should serve as a groundbreaking benchmark describing the state of our mountain birds.

Theodore Squires

A helpful and long-overdue resource for work with mountain birds

一份对山区鸟类工作大有裨益且姗姗来迟的资源

Partial migrants have populations consisting of both migratory and resident individuals. These migrants and residents experience unequal ecological conditions during winter and the underlying factors driving their decision to stay on their breeding grounds or to migrate remain debated—both from the viewpoint of populations and individuals. Here, we studied partial migration in a small raptor, the Eurasian Sparrowhawk (Accipiter nisus), from two different but interconnected perspectives: 1) explaining the patterns and variation in the ratio of migrants to residents (migratoriness) at the population level and 2) revealing how age and sex may affect the individual decision to be migratory or resident. We used citizen observation data over four decades to explore the temporal and spatial variation in the age and sex ratio of wintering resident sparrowhawks in Sweden. We found that the migratoriness unexpectedly increased with higher annual temperatures and showed long-term trend across the study period. Also, this migrant-to-resident ratio increased with smaller winter prey abundance. The average winter sex ratio was male-biased and became increasingly so over the years. We suggest that residency benefits territory-establishing males as early presence gives a competitive advantage in obtaining high-quality territories. Moreover, the distribution of overwintering individuals (regardless of sex) moved gradually northwards as the winter progressed, suggesting that smaller-scale migration occurs among the resident fraction of the population. These results provide suggestions for the underlying drivers and regulation of partial migration.

Andreas Otterbeck

Andreas Lindén

Temporal increase in migratoriness and increasing male bias among residents in partially migrating Swedish sparrowhawks Accipiter nisus

部分迁徙的瑞典雀鹰（Accipiter nisus）中迁徙性增加及雄性定居者比例上升的时间变化

Seed dispersal of plants affects the spatial structure and population dynamics, contributing to ecosystem functioning. Birds are among the most important seed dispersers. Preferences of birds in fruit and berry consumption are potentially significant selective pressures on the evolution of fruit traits that affect plant fitness. European ivy (Hedera helix) is a widespread deciduous species in Europe and the Common Blackbird (Turdus merula) is important seed disperser. This study investigates blackbird feeding preferences for specific sizes of ivy seeds. Field data was collected in a small settlement east of Simferopol city in Crimea and included a collection of reference seeds gathered from plants and seeds found in bird excretions. The length of the major axis, minor axis, and aspect ratio were measured, and statistical analysis was performed. The length of the major and minor axes of seeds consumed by blackbirds was higher compared with the reference collection, the aspect ratio was the opposite. Evidence of size differences could suggest weak effect of selective consumption of blackbirds on seed shape. This research extends our knowledge of the ecological relationship between frugivorous birds and plants and the role of birds in directional selection in a particular locality.

Volodymyr Kucherenko

The selective consumption of European ivy (Hedera helix) berries by the Common Blackbird (Turdus merula)

欧洲常春藤浆果的选择性消费：乌鸫的行为研究

Adult survival estimates are important for assessing population status and viability and for investigating the role of different anthropogenic effects on their variation. Currently, the rapidly increasing wind power poses a new and severe threat to survival of large raptors. Between 2011–2024, we monitored 26 Golden eagles (Aquila chrysaetos) using Global Positioning System tracking devices in Finland, on territories where wind-power plants are currently absent and eagles are not subject to increased mortality from wind power plant collisions. Using the accumulated tracking data, we constructed individual capture histories on a monthly basis and adult survival rates using known-fate models in program MARK. We also review published adult survival estimates of Golden Eagles reported throughout their range for relative comparison. Monthly adult survival in our study area was 0.9933 (0.9854–0.9970) which translates to annual survival of 0.924 (0.838–0.965). We found eight studies reporting survival estimates, which ranged from 0.860 to 0.975 with a mean of 0.928. Thus, adult survival rates of Golden Eagles breeding in northern Finland, that are not affected by wind power plants, are high as expected for a viable population and very close to the mean estimated from other Golden Eagle populations. Maintaining high adult survival rates will be key to Golden Eagle population stability with expanding wind energy development in Finland.

Hannu Tikkanen

Veli-Matti Pakanen

Olli-Pekka Karlin

Jouni Lamminmäki

Survival estimates of GPS-tagged adult Golden Eagles (Aquila chrysaetos) breeding in Finland

使用GPS标记的芬兰繁殖金雕（Aquila chrysaetos）的生存估计

The exponential increase in the ‘NW/SW European Greylag Goose population’ (NGGP) has created demands for more precise estimates of the national breeding populations and improved understanding of their movements to support its effective management. Increased NGGP abundance has been associated with a northeast-ward shift in wintering centre of gravity, suggesting major changes in migratory and wintering patterns. Greater numbers of wintering Greylag Geese wintering numbers in Denmark could originate from increases in the Danish breeding population showing a more sedentary habit and/or from a higher incidence of “winter short-stopping” by birds from elsewhere. Data from the first 16 Greylag Goose deployed with GPS/GSM tracking collars in 2021 and 2022 were used to test the hypothesis that birds in newly colonised Danish breeding areas were more sedentary than the long-distance migratory geese in traditional nesting areas. Contemporary migration patterns showed that some Danish breeders (including examples from newly colonized breeding areas) still migrate to their traditional wintering quarters in southern Spain, but most tagged Greylag Geese stayed in Denmark throughout the annual cycle. These data also provided the first evidence of the occurrence of winter short-stopping among individual Danish Greylag Geese, which after one winter in Spain subsequently wintered in Denmark and the Netherlands, indicating that some individuals can shift between new wintering areas every autumn. Overall, these results show that while most Danish summering Greylag Geese are now largely resident within Denmark, some move to Germany and the Netherlands and a few still undertake the traditional long migration to southern Spain, making assignment of breeding provenance to migrating birds challenging.

Henning Heldbjerg

Kevin K. Clausen

Lei Cao

Anthony David Fox

GPS-tracking reveals winter short-stopping and large differences in individual migratory distance among Greylag Geese (Anser anser) breeding in Denmark

Abbreviation	Ornis Fenn.
Journal Impact	1.16
Quartiles(Global)	ORNITHOLOGY(Q2)

ISSN	0030-5685, 2736-898X
h-index	33

Publication Information	Publisher: University of Helsinki，Publishing cycle: Quarterly，Journal Type: journal，Open Access Journals: No
Basic data	Year of publication: 1991，Proportion of original research papers: 0.00%，Self Citation Rate:0.00%， Gold OA Rate: 2.33%
Average review cycle	网友分享经验：>12周，或约稿
Average recruitment ratio	网友分享经验：容易

Ornis Fennica

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A helpful and long-overdue resource for work with mountain birds

Temporal increase in migratoriness and increasing male bias among residents in partially migrating Swedish sparrowhawks Accipiter nisus

The selective consumption of European ivy (Hedera helix) berries by the Common Blackbird (Turdus merula)

Survival estimates of GPS-tagged adult Golden Eagles (Aquila chrysaetos) breeding in Finland

GPS-tracking reveals winter short-stopping and large differences in individual migratory distance among Greylag Geese (Anser anser) breeding in Denmark

A helpful and long-overdue resource for work with mountain birds

Temporal increase in migratoriness and increasing male bias among residents in partially migrating Swedish sparrowhawks Accipiter nisus

The selective consumption of European ivy (Hedera helix) berries by the Common Blackbird (Turdus merula)

GPS-tracking reveals winter short-stopping and large differences in individual migratory distance among Greylag Geese (Anser anser) breeding in Denmark

Survival estimates of GPS-tagged adult Golden Eagles (Aquila chrysaetos) breeding in Finland