Zebrilus undulatus: Zigzag Heron

Zigzag Heron - Zebrilus undulatus
( Gmelin, 1789 )

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Subspecies:	Unknown
Est. World Population:	U

CITES Status:	NOT LISTED
IUCN Status:	Least Concern
U.S. ESA Status:	NOT LISTED

Body Length:
Tail Length:
Shoulder Height:
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Top Speed:
Jumping Ability:	(Horizontal)

Life Span:	in the Wild
Life Span:	in Captivity

Sexual Maturity:	(Females)
Sexual Maturity:	(Males)
Litter Size:
Gestation Period:

Habitat:

This species occurs in streams, slow-moving rivers, pools, marshes and swamps of tropical evergreen forests, as well as in mangroves and gallery forests in savanna habitat (Martínez-Vilalta et al. 2020). Its diet is not well documented, but is thought to mainly consist of small fish and flying insects (del Hoyo et al. 1992).

Range:

Zebrilus undulatus is a poorly known species of the Orinoco, Negro and Amazon basins. It occurs from east Colombia and Ecuador, where it is considered rare and local (del Hoyo et al. 1992). In bordering Venezuela there have been an increasing number of records, and the species may be locally common (Hilty 2003). From here, its range extends eastwards through Guyana to Suriname, French Guiana and north-central Brazil, and south-west to east Peru and north-west Bolivia (del Hoyo et al. 1992). It appears generally very rare, but has probably been significantly under-recorded due to its elusive nature and is likely to have a wider distribution than is currently known (Restall et al. 2006, A. Lees in litt. 2011).

Conservation:

Conservation Actions Underway
The species occurs in several protected areas across its range, including Pacaya-Samiria National Reserve (Peru) and Cantão State Park (Brazil). It is listed as Vulnerable at the national level in Ecuador (Freile et al. 2019).

Conservation Actions Proposed
Quantify the population size. Monitor the population trend. Expand the protected area network to effectively protect key sites. Effectively manage protected areas, utilising emerging opportunities to finance protected area management with the joint aims of reducing carbon emissions and maximizing biodiversity conservation. Incentivise conservation on private lands through expanding market pressures for sound land management and preventing forest clearance on lands unsuitable for agriculture (Soares-Filho et al. 2006).