Fall World Migratory Bird Day
Fall World Migratory Bird Day is held on October 11. Held on the second Saturday of May and October with the support of the United Nations Environment Program - UNEP. This event in the second decade of the month October is annual. 
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The presence and abundance of bird species that thrive in healthy native forest communities will keep us honest about our progress, while the tireless work and passion of our many partners keeps us all moving forward in the best ways that we know how.
World Migratory Bird Day (WMBD) is an annual awareness-raising campaign highlighting the need for the conservation of migratory birds and their habitats.
Every year people around the world take action and organize public events such as bird festivals, education programmes, exhibitions and bird-watching excursions to celebrate WMBD. All these activities can also be undertaken at any time on the year because that countries or regions observing the peak of migrations at different times, but the main days for the international celebrations on the second Saturday in May and in October.
Similar holidays and events, festivals and interesting facts
World Animal Road Accident Awareness Day on October 10
International Vet Nurse Day on October 10 (Held on the second Friday of October);
World Porridge Day on October 10
World Homeless Day on October 10
World Day Against the Death Penalty on October 10
International Day Against the Death Penalty on October 10
European Day Against the Death Penalty on October 10
International Newspaper Carrier Day on October 10 (Held on the second Friday in October);
Arbor Day in Poland on October 10 (Święta Drzewa);
Arbor Day in Namibia on October 10 (Held on the second Friday of October);
Migratory Bird Days in the Lower Saxon Wadden Sea National Park on October 11
Day of Solidarity with the Political Prisoners of South Africa on October 11
International Newspaper Carrier Day on October 11 (Held on the Saturday of the first full week of October);
European Day for Organ Donation and Transplantation on October 11 (The European Day for Organ Donation and Transplantation - #EODD; takes place to raise awareness on the importance of organ, tissue and cell donation as a way to improve and save lives);
International Pinotage Day on October 11 (Celebrated on the second Saturday of October);
UN Spanish Language Day on October 12 (United Nations);
World Bone and Joint Week on October 12
World Economist Day on October 12 (the day when outstanding representatives of the profession are awarded a prize by decision of the Nobel Committee);
International Day Against DRM on October 12 (IDAD, Inaugurated 2006);
World Algae Day on October 12