Dwarf Fortress Bug Tracker - Dwarf Fortress
View Issue Details
0011488Dwarf FortressDwarf Mode -- Invasionspublic2020-03-31 15:032021-03-09 19:13
normalmajorhave not tried
0011488: Ambusher elves are being spotted, but the giant monsters they're riding on aren't.
In the save linked below, there are what appears to be elves flying around outside. Dfhack reveals the presence of giant flying animals in the same tile (giant mosquitos and giant cardinals). So the ambushing elves were spotted, but the giant bright red monsters they're riding on weren't.

(Presumably) correct behaviour would be for troops and their mounts to be spotted at the same time.
Load save,check out the flying elf (the save starts centered on one, there are four other flying around).

Save (thanks to BugTomazi).
http://dffd.bay12games.com/file.php?id=14977 [^]
Quite likely to be related to the stealthy giant spiders bug:

No tags attached.
Issue History
2020-03-31 15:03Shonai_DwellerNew Issue
2021-03-09 17:09eerrNote Added: 0040965
2021-03-09 17:10eerrNote Edited: 0040965bug_revision_view_page.php?bugnote_id=0040965#r16668
2021-03-09 19:13Shonai_DwellerNote Added: 0040966

2021-03-09 17:09   
(edited on: 2021-03-09 17:10)
I've got a similar problem, groups of elven animal ambushers are being revealed one at a time by my cage traps.

I've got a save where giant black bears and giant red squirrels are triggering the 'ambush' message individually. They are not revealing their whole group.

I guess the elves could be riding them, but I don't know.

2021-03-09 19:13   
That's regular (somewhat annoying) ambush behaviour. The whole group isn't revealed at once leading you to send out your militia squad, only to be ambushed by the hidden troops.