@TinoPup Thank you! Definitely bigger than a blue duiker, a little bigger than a red-flanked duiker. Apparently 36 pounds- about 10 pounds lighter than a red brocket.
@AWP Pampas and Marsh Deer...and what year are we talking- oh no...is the third Northern Pudu!??
@Giant Eland As if I've other duikers Red-flanked has been a no show on every visit to Bronx, so I've only seen biggest and smallest. The brocket I saw was lying down and difficult to see, but enough that I can mentally compare them.
@Giant Eland 1999, so Pampas, Marsh and Gray Brocket. There might be one individual of Gray Brocket left at Faunia Madrid, so there is some chance I will see that the species (visiting Madrid is more probable than visiting a South American zoo for me).