This Corvus frugilegus and I met a couple of years ago in Scotland, on a beach near St. Andrews. These highly intelligent birds face the threads of losing habitat because of extensive agriculture, of losing food because of mercury coating on seeds and the use of pesticides, and of losing their life because stupid humans shoot them (http://www.iucnredlist.org/details/22705983/0).
Sitta europaea is lovely to look at. The species is doing alright, but since they live in old forests local populations are under threat from logging, e.g. in Poland.
This one was on a bird feeder in Slovakia. Remember to feed birds seeds and nuts. Feeding bread is a really bad idea as it damages the birds’ digestive system.
Ducks are brilliant, and this Aythya ferina which I saw on the Danube in Austria last spring is no exception. The species is classified as vulnerable.
Numbers are declining because of loss of breeding habitat (marshes) and bad water quality (too much fertilizer in the water because of bad agricultural management).
Generally, the species is doing alright, but threats include the continued loss of wetlands, collisions with overhead power lines, use of persistent pesticides (such as DDT) to combat locusts in Africa, and largely illegal hunting on migration routes and wintering grounds. https://en.wikipedia.org/wiki/White_stork#Conservation
Recent news about Pygoscelis adeliae hasn’t been very good (https://www.theguardian.com/environment/2017/oct/12/penguin-catastrophe-leads-to-demands-for-protection-in-east-antarctica). It’s down to us human animals to protect what we haven’t destroyed and killed off yet.
I saw my first Fratercula arctica back in 2002, and I fell in love with them! The ones pictured here were making home on the Faroe Islands, in 2006. Unfortunately, the species is classified as vulnerable – hunting, loss of food because of pollution and climate change, and tourists all causing problems.