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The site was identified as important in 2007 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species') at the site:

Species	Red List1	Season	Year(s)	Size	IBA criteria
Solitary Tinamou Tinamus solitarius	NT	resident	-	present	A1, A3
Spot-winged Wood-quail Odontophorus capueira	LC	resident	-	present	A3
Scale-throated Hermit Phaethornis eurynome	LC	resident	-	present	A3
Purple-crowned Plovercrest Stephanoxis loddigesii	LC	resident	-	present	A3
Violet-capped Woodnymph Thalurania glaucopis	LC	resident	-	present	A3
Slaty-breasted Wood-rail Aramides saracura	LC	resident	-	present	A3
Black-capped Screech-owl Megascops atricapilla	LC	resident	-	present	A3
Rusty-barred Owl Strix hylophila	LC	resident	-	present	A1, A3
Southern Surucua Trogon Trogon surrucura	LC	resident	-	present	A3
Rufous-capped Motmot Baryphthengus ruficapillus	LC	resident	-	present	A3
Buff-bellied Puffbird Notharchus swainsoni	LC	resident	-	present	A3
Red-breasted Toucan Ramphastos dicolorus	LC	resident	-	present	A3
Spot-billed Toucanet Selenidera maculirostris	LC	resident	-	present	A3
Ochre-collared Piculet Picumnus temminckii	LC	resident	-	present	A3
Robust Woodpecker Campephilus robustus	LC	resident	-	present	A3
Yellow-browed Woodpecker Piculus aurulentus	NT	resident	-	present	A1, A3
Helmeted Woodpecker Celeus galeatus	VU	resident	1998-2007	present	A1, A3
Yellow-fronted Woodpecker Melanerpes flavifrons	LC	resident	-	present	A3
White-spotted Woodpecker Veniliornis spilogaster	LC	resident	-	present	A3
Pileated Parrot Pionopsitta pileata	LC	resident	-	present	A3
Streak-capped Antwren Terenura maculata	LC	resident	-	present	A3
Spot-backed Antshrike Hypoedaleus guttatus	LC	resident	-	present	A3
Large-tailed Antshrike Mackenziaena leachii	LC	resident	-	present	A3
Tufted Antshrike Mackenziaena severa	LC	resident	-	present	A3
White-shouldered Fire-eye Pyriglena leucoptera	LC	resident	-	present	A3
Rufous Gnateater Conopophaga lineata	LC	resident	-	present	A3
Lesser Woodcreeper Xiphorhynchus fuscus	LC	resident	-	present	A3
Black-billed Scythebill Campylorhamphus falcularius	LC	resident	-	present	A3
Black-capped Foliage-gleaner Philydor atricapillus	LC	resident	-	present	A3
Ochre-breasted Foliage-gleaner Anabacerthia lichtensteini	LC	resident	-	present	A3
White-eyed Foliage-gleaner Automolus leucophthalmus	LC	resident	-	present	A3
Olive Spinetail Cranioleuca obsoleta	LC	resident	-	present	A3
Rufous-capped Spinetail Synallaxis ruficapilla	LC	resident	-	present	A3
Blue Manakin Chiroxiphia caudata	LC	resident	-	present	A3
Greenish Schiffornis Schiffornis virescens	LC	resident	-	present	A3
Southern Bristle-tyrant Pogonotriccus eximius	NT	resident	-	present	A1, A3
Eared Pygmy-tyrant Myiornis auricularis	LC	resident	-	present	A3
Drab-breasted Bamboo-tyrant Hemitriccus diops	LC	resident	-	present	A3
Rufous-crowned Greenlet Hylophilus poicilotis	LC	resident	-	present	A3
Creamy-bellied Gnatcatcher Polioptila lactea	LC	resident	-	present	A1, A3
Chestnut-bellied Euphonia Euphonia pectoralis	LC	resident	-	present	A3
Blue Seedeater Amaurospiza moesta	LC	resident	-	present	A1, A3
Green-headed Tanager Tangara seledon	LC	resident	-	present	A3
Ruby-crowned Tanager Tachyphonus coronatus	LC	resident	-	present	A3
Chestnut-headed Tanager Thlypopsis pyrrhocoma	LC	resident	-	present	A3

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2007) may differ.

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2007. The most recent assessment (2011) is shown below.

State (condition of the trigger species' habitats)
Habitat	Quantity (% remaining)	Quality (% carrying capacity)	Result
Forest	moderate (70-90%)	good (> 90%)	near favourable

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Biological resource use	happening now	whole area/population (>90%)	very rapid to severe deterioration	very high
Agricultural expansion and intensification	happening now	whole area/population (>90%)	very rapid to severe deterioration	very high

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Little/none of site covered (<10%)	Unknown	Unknown	negligible

Habitat1	Habitat detail	% of IBA
Forest	Tropical semi-evergreen forest	49
Grassland	Campo grassland	4
Savanna		1

1. IUCN Habitat classification.

Land use	% of IBA
agriculture	46

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Estancia Muxfeldt (Paraguay). Downloaded from https://datazone.birdlife.org/site/factsheet/estancia-muxfeldt-iba-paraguay on 22/11/2024.