Caverna: The Forgotten Folk – Halflings promo

Yes. Halflings start with 4 additional food, on top of the food they receive for play order (p. 1).

Add 4 grain to a newly planted grain field instead of 2, or 2 vegetables to a newly planted vegetable field instead of 1 (p. 1).

For each animal type, you get 2 offspring if you have at least 4 of that animal when you breed; with only 2 or 3, you get the usual 1 offspring (p. 1).

In feeding phases, each adult Halfling costs 3 food instead of the usual 2. At the end of round 4 and when the second red harvest marker is revealed, each person instead consumes the usual 1 food (p. 1).

No. The four new furnishings replace specified base-game tiles on the supply boards, but any player can acquire them (p. 1).