Netherlands
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JvA-20170316-39468
JvA-20140730-2530
Montagu's harrier mother and chicks
Four Montagu's harrier chicks have grown too large to shelter from the rain under their mother. Flevoland, the Netherlands.
A staffer and a volunteer of the Dutch Montagu's Harrier Foundation install a wire fence around a nest in Groningen to protect it from predators and harvest. The status of the breeding populations in the Netherlands and the UK is so precarious that each nest must be individually monitored and protected, and locations are kept secret.
A captive Sumatran tiger in Burgers' Zoo, the Netherlands. More Sumatran tigers live in captivity today than in the wild, where fewer than 500 remain.
Friesland, the Netherlands
Friesland, the Netherlands
Collection of Naturalis Biodiversity Center
Artificial intelligence researcher Tijn van der Zant
Artificial intelligence researcher Tijn van der Zant poses between dancing NAO robots in the Cognitive Robotics Laboratory of the University of Groningen. The Netherlands.
Collection of Naturalis Biodiversity Center
Mart Smit, één van de winnaars van de Marius van der Sandt beurs 2015, tijdens de workshop van begeleidend fotograaf Joris van Alphen.
In most of Europe, natural breeding habitats of Montagu's harriers have disappeared, forcing them into farmland. 60% of farmland nests would be destroyed in the absence of nest protection. Here, a combine passes by a protected Montagu's harrier nest in Groningen, the Netherlands. NB: This is a composite photo. Chicks of this age may flutter out of the cage from fear of the noise and end up in the combine harvester. For this reason, they were temporarily removed from the nest by Dutch Montagu's Harrier Foundation staff. Unfortunately, the pictured situation does occur as the Foundation is often not alerted when the harvest takes place.
Clasping a songbird, a female Montagu's harrier prepares to land at her nest to feed her chicks. Groningen, the Netherlands.
Days-old Montagu's harrier chicks wait for their parents to bring food. Montagu's harriers make the 5,000 kilometer migration to breed in Europe, where they spend about four months of the year. Groningen, the Netherlands.
Play fighting Sumatran tiger cubs
Captive Sumatran tiger cubs play fighting in Burgers' Zoo, the Netherlands. More Sumatran tigers live in captivity today than in the wild, where fewer than 500 remain.
Friesland, the Netherlands
Friesland, the Netherlands
Collection of Naturalis Biodiversity Center
Common frog (Rana temporaria) males float amid a mass of millions of eggs, croaking loudly to attract females. Oostvaardersplassen, the Netherlands.
Collection of Naturalis Biodiversity Center
Judith Noorlandt en Jacob Kaptein, winnaars van een Marius van der Sandt beurs 2015, tijdens de workshop van begeleidend fotograaf Joris van Alphen.
A male Montagu's harrier named Joey carryies a prey to his nest in Groningen, the Netherlands. Researchers name all harriers equipped with GPS-backpacks.
University of Groningen researcher Almut Schlaich faces a thunderstorm in the field. Groningen, the Netherlands.
A captive young Sumatran tiger looks up from a waterhole. More Sumatran tigers live in captivity today than in the wild, where fewer than 500 remain.
A captive Sumatran tiger cub in Burgers' Zoo, the Netherlands. More Sumatran tigers live in captivity today than in the wild, where fewer than 500 remain.
Friesland, the Netherlands
JvA-20131009-5783
Canis latrans, collection of NCB Naturalis.
Collection of Naturalis Biodiversity Center
Collection of Naturalis Biodiversity Center
JvA-20140731-2660
A resting pole placed next to an antenna (right) allows easy downloads of GPS data. Signals from birds as far as 3 kilometers away may be picked up. Groningen, the Netherlands.
JvA-20140709-8880
A captive Sumatran tiger in Burgers' Zoo, the Netherlands. More Sumatran tigers live in captivity today than in the wild, where fewer than 500 remain.
Friesland, the Netherlands
Friesland, the Netherlands
Collection of NCB Naturalis
Collection of Naturalis Biodiversity Center
Juvenile, collection of Naturalis Biodiversity Center
Collection of Naturalis Biodiversity Center
JvA-20140731-2647
Montagu's harrier mother and chicks
Four Montagu's harrier chicks have grown too large to shelter from the rain under their mother. Flevoland, the Netherlands.
Two children help measure the claw of a Montagu's harrier chick at a nest in Groningen. Involving the local community is a key part of the conservation strategy of the Dutch Montagu's Harrier Foundation.
A captive Sumatran tiger with cub in Burgers' Zoo, the Netherlands. More Sumatran tigers live in captivity today than in the wild, where fewer than 500 remain.
Friesland, the Netherlands
Friesland, the Netherlands
Collection of Naturalis Biodiversity Center
JvA-20130527-stereographic
Collection of Naturalis Biodiversity Center
Konik horses (wild), Oostvaardersplassen, the Netherlands.
