What does global warming effect the animals in Hong Kong?

Global warning and greenhouse effect have changed the living cycle for some of the animals in Hong Kong.
The most observational one is birds. Hong Kong has a birds watching area. There used to have many different kinds of birds flying in- and out- in different climates and seasons. Due to the change of climates, the numbers and species of birds arrived in Hong Kong changed. You may hear that the death rate of birds has dramatically increased. It is somewhat due to the global warning and greenhouse effect. This is because some birds could not find other place to stay in certain seasons, so they have to stay in where they used to stay – Hong Kong. However, their living cycle and climates change resistance did not catch up with the climates change. Therefore, more new diseases are born and spread.
Also, the global warning and greenhouse effect changes the temperatures of the oceans, as well as the current directions. It results in more shakes, crocodiles and more oceanic animals getting lost and arriving Hong Kong area. It is not hard to predict that these lost animals will die as soon as they body resistance cannot sustain the climates in Hong Kong.

Thank you~:)