Yes, this post proves what a nerd I really am. I am worried about the birds in my neighbourhood. These fellows are an old concern:
They just don't sing the way they used to. The Parus majors in Helsinki have been doing it for years: instead of singing tet-tet-tew, these days they only do tet-tew. Ornitologists have argued that the Parus majors are feeling the pressure of urbanisation, and feel like they are having to haste themselves. They are stressed out, and don't have the time or the energy to sing properly. Well, this is old news.
This is news though: the Fringilla coelebs have started doing the same thing. I noticed it today when I walked to the train station.
The arrival of the chaffinch is one of the most definite signs of spring, and its singing is one of my favourites. It bubbles and flows like a fountain. It is not too complicated, but just full of deep joyful sounds and energy. For the past few days I have been wondering why they sound different. I realised it today. They are leaving sounds out just like the Parus majors. What is this world coming to, when even birds are so stressed out that they can't communicate properly?!