Ouwehands Dierenpark – Free-flight aviary

Name of Zoo Ouwehands Dierenpark
Name of respondent G. Meijer
E-mail address of respondent gerard.meijer@ouwehand.nl

Name of Exhibit Free-flight aviary
Opening Date/Year 01-01-77-

1. DIMENSIONS
   a) height in m 17
   b) area in m2 1500
   c) volume in m3 25500
2. SHAPE
   a) shape sides rectangular
   b) shape of top peak
3. CONSTRUCTION
   Frame
   1) placement main support structures perimeter (e.g. corners)
   2) materials main support metal, specify type Steel with powder coating
   3) special supports/protection for (a) interface net/mesh and main support (specify) None
   (b) protection from main supports rotting in ground (specify ) N.a.
   4) secondary supporting structures beams (e.g. across top)
   5) lowering or removal of top when snow or severe winds expected possible No
   6) constructor External company, please specify
   Material sides
   1) solid (rock, brick wood etc) 0
   2) glass 0
   3) piano wire 0
   4) netting/mesh 4
   a) material PVC coated wire
   b) name manufacturer Staalbouw Mook B.V.
   c) supplier
   d) product name
   e) opening size 4×4
   f) diameter 5.7
   g) color Green
   h) configuration chain link
   i) how is netting/meshing attached to aviary structure? Iron wire
   j) visibility through net/mesh satisfactory
   k) water resistance excellent
   l) UV resistance excellent
   Material top
   1) Same as sides yes If yes, continue to 4. Visibility
   2) Not same as sides a) name manufacturer
   b) supplier
   c) name product
   d) material material – please choose one
   e) configuration configuration – please choose one
   f) opening size
   g) diameter
   h) color
   i) water resistance water resistance – please choose one
   j) UV resistance UV resistance – please choose one
4. VISITOR VIEWING
   a) walk through / walk in yes
   b) barriers between public and birds rails and rocks
   c) other special features to enhance viewing possibilities, specify Levelling landscape
5. ENTRANCES AND EXITS
   a) service i. double doors with area between no
   ii. through attached building yes
   iii: please describe how you bring in large enclosure furnishings that are too large to be brought through the doors
   b) visitor single sliding door
   c) curtains none
6. WATER AREA
   a) % surface area water (versus land) 30
   b) frequency of drainage and cleaning Once a year
   c) type of water running
   d) filtration system yes, specify
   e) depth in cm i. minimum 10
   ii. maximum 40
   iii. % surface area < 20 cm 70
7. SUBSTRATES
   a) sand 0 % area
   b) grass 0% area
   c) dirt 40 % area
   d) rocks 0 % area
   e) visitor path 30 % area
   f) other 20 % area
8. VEGETATION
   a) grass/other herbacious plants < 20 cm high cover 0 % area b) herbacious plants/shrubs 20 cm- 1m high cover 10 % area c) herbacious plants/shrubs/trees 1 m-3 m high cover 30 % area d) number of coniferous trees > 3 m high 3
   e) number of deciduous trees > 3 m high 11
   f) are there any plants you would recommend for aviaries?
   g) are there any plants that have been problematic in this aviary?
9. PREDATOR PROTECTION
   a) electric fence inside no cm high
   b) electric fence outside no cm high
   c) different type meshing along bottom no cm high
   d) plastic along perimeter no cm high
   e) concrete under ground no cm deep
   f) other (specify)
10. SUPPLEMENTAL LIGHTING
    supplemental lighting outside no
11. PERMANENT INTRODUCTION/CATCHING AREA PRESENT
    Introduction and/or catching area present yes
12. INDOOR ENCLOSURE
    a) attached to aviary please choose one
    b) dimensions i. length
    ii. width
    iii. Height 3-5 m
    c) average number of nights used per year 365
    d) average number of days used per year 150
    e) direct access to main outside enclosure yes
    f) direct access to alternative outdoor area yes
    g) substrates (specify) Concrete
    h) usable water area present for bathing yes
    i) possibility to subdivide area if need to yes
    j) keeper access area not shared by birds yes
    k) natural sunlight received yes
    l) number of hours of artifical light 0
    m) heating supplied no
    n) please describe ventilation system
    o) visitor viewing no
13. SPECIES
    a) species currently held (if possible also historically) list
    b) species not held successfully
    c) reason per species (please list species below) i. escape
    ii. incompatibility
    iii. health issues
    iv. stress
    v. accidents (e.g. collisions)
    vi. other
14. PROBLEMS
    Problems with:
    a) Indigenous bird species entering enclosure yes, specify sparrows and blackbirds
    b) Predation in enclosures yes, specify Beech marten
    c) Aviary withstanding winds experienced no
    d) Aviary withstanding snow experienced no
    e) Excessive mortality and or accidents with one or more species yes, specify
    f) other health issues, e.g. foot lesions no
    g) frequent replacement or repair of materials yes, specify Ground is dirty because of the feaces, which is hard to clean
    h) husbandry issues e.g. cleaning, heating, moving birds no
15. DISSATISFACTION
    a) Visitor yes, specify During winter there is not much to see, it is not possible for visitors to have a look inside
    b) Keeper yes, specify Overview of the birds is bad and cleaning of the ground is difficult
16. COSTS (in EUR)
    a) Design
    b) Materials and labor
    c) Maintenance (e.g. replacement of netting etc.)
    d) Were there any choices made/possibilities to reduce costs?
17. ENCLOSURE DATA SUBMISSION
    a) Contact person Steven van den Heuvel and Kitty Ludwig
    b) data submitted 24-01-12