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What is currently the greatest threat to migratory birds?


Changes in land use
166  47.8%
Climate Change
96  27.7%
38  11%
Hunting and trapping
37  10.7%
Invasive Alien species
7  2%
3  0.9%

Number of Voters  :  347


According to BirdLife International’s “State of the World’s Birds” a range of threats drives declines in bird populations. The threats to birds are many and varied: agriculture, logging and invasive species are the most severe, respectively affecting 1,065 (87%), 668 (55%) and 625 (51%) globally threatened species, making change of land use by far the greatest factor leading to species’ falling numbers. These threats create stresses on bird populations in a range of ways, the commonest being habitat destruction and degradation, which affect 1,146 (93%) threatened species.

Source: BirdLife International

Source: BirdLife International “State of the World’s Birds” (Ppages 4 and 8)

Declining bird numbers is not a new phenomenon, as the “State of the World’s Birds” shows that in total 153 bird species are believed to have gone extinct since 1500. Avian extinctions are continuing, with 18 species lost in the last quarter of the twentieth century and three more known or suspected to have gone extinct since 2000. The rate of extinctions on continents appears to be increasing, principally as a result of extensive and expanding habitat destruction.

[ Read more about the State of the World’s Birds (SOWB)
[ Read the SOWB Case Study: A range of threats drives declines in bird populations ]


World Migratory Bird Day

World Migratory Bird Day (WMBD) raises awareness about the threats to migratory birds and the need for their protection. This year’s WMBD theme “Migratory birds and people – together through time” not only celebrates through events the cultural, economic and environmental connections between migratory birds and people but also aims to show the importance of migratory birds to human beings.

[ Read more about this year’s WMBD theme ]
[ Read more about how to make your own WMBD event ]