I am looking for a data base of life history traits for bird species. Is there such data base? If not, what are your advice on how to collect those data? Is there a handy website that list characteristics of birds around the world? I started to gather those data using wikipedia (and the references anytime wikipedia actually have reference) but it is very cumbersome.
The kind of data I am looking for are:
- Reproductive age
- Average lifespan
- Average gestation time
- Number of eggs per reproduction event