Peptiberg: Hello, friend. Why do you look so pleased?
Tippgeber: My friend just had a change of profession - from a divisive one to a constructive one.
Peptiberg: Was it a smooth transition?
Tippgeber: Yes, but it did involve being eaten up, digested and expelled by a bird.
Peptiberg: A real bird?
Tippgeber: A valid, full-fledged bird. That's what I sed.
Peptiberg: I have to admit I wouldn't expect that method of transition to work in this economy. Can this bird help me find new employment too?
Tippgeber: Probably not. It only works on very particular things, and my friend's vocation was quite niche within the field.
Peptiberg: Well, you seem to think this was overall a change for the better.
Tippgeber: Oh yes, the new job may be old-fashioned, but at least the sign above the door has name recognition in the high-tech Communications age.
Peptiberg*: You're breaking up. I think our connection just got cut off. I'm sure you can no longer hear me, but I wish to ask what the two occupations are! If only I knew what that bird was...
The bird's designation is a full
Also a hint:
The professions aren't exactly on the top 18 lists. In fact, I've arguably never heard of either one being a profession per se, but they are reasonably within the realm of occupation.
A revival hint:
The puzzle is stated by the German one. @KateGregory has framed most of the solution but the anagrams are just for fun.
*This name is not a hint.
I am not aware of any typos.