That "avian course" certainly refers to the featured Pokémon, which was Pikipek, a bird family from Alola. It has a powerful beak, and true to that, its fully evolved form of Toucannon (after Trumbeak) got the Charged move of Beak Blast, a powerful one for all realms. The main bonus was tripled XP, which some Trainers certainly still need well after the level cap increase last season, but all is fine and good for that. The bonuses of double Candy and Candy XL chance are likewise as useful and necessary if only secondary.
Other changes were still apparent. Lure Modules became one hour in extended length (while Incense remained at three hours). This followed the change instituted last month of having more encounters from them, even if it does meant more of their usage (and spending for them). Then there were the usual photo bombs, extra Special Trade, trade discounts, Field Research tasks, and the paid Special Research (here titled "Pecking Order"). It was also stated that this would be the last time for special seasonal backgrounds for the featured Pokémon, which may or may not have appealed to Trainers all this time.
With that out of the way, now it also has to be said that I also had a bit of an "assistance" for this one, and faithful readers will know what that means, also with the necessary switch to conversation mode for that purpose...
Goh: Oh, you sent Ash to do it, didn't you.
Me: That I did, for certain reasons.
Ash: Pikipek is an neat bird - and so are its evolutions.
Goh: Well, I can see that. Its beak is very showy.
Ash: The Toucannon move is good for that!
Pikachu: Chu pika pika. ["Beware of the beak."]
Me: You did catch as much as you could, didn't you?
Ash: I did, after I battled Lugia with a few of your other friends and then as I went somewhere else.
Goh: Ooh! Lugia, do tell.
Me: I have something to say about that, but not now.
Ash: And then I evolved as many as you think you'd need for all kinds of things. I think I got them all - even one with a background image.
Me: OK, that's great. I can take it from there.
Goh: So, somewhere else - would this "somewhere else" be a thing of some sort?
Ash: Yeah! It was a little festival of some sort.
Goh: I see. So it's all the usual effort by our friend here.
Me: And I'll have more on that soon - I've got to peck at it, though.
Goh: Ha!
As Trainers peck away at the continued offerings of Pokémon Go, they'll have to peck away at the same for Community Day. This one seems to be appropriate for just that with the featured species and the associated bonuses, and it might just be appreciable enough so they won't "peck down" others for that purpose and others.
One year ago: Attraction to Genuine People
Two years ago: Cosplay: G100 Spicy Carnival
Three years ago: Event Types in Café Remix
Four years ago: A Lasting Graffiti
Five years ago: Let's Go (Above and) Beyond
Six years ago: Being a "Love Slave"
Seven years ago: Cosplay: Chibi Daisuki! Japan Fest
Eight years ago: A Beautiful Symphony