Tag: Kiwi

Kiwi Species

Photo credit Tae Eke

Kiwi

It is thought that around 70,000 Kiwi remain on the two islands of new Zealand. One might think that this was high, but it is estimated that there were around 12 million before humans arrived – so around 0.5% of the population survives. More importantly, this is after a great deal of work has been done by many grassroot groups, in order to shore up the population – it has been far lower in the past.

Furthermore, roughly 2% of the umanaged kiwi are lost each week (around 20 birds). When well protected, a kiwi can live 25-50 years.

 

Rowi Kiwi

The rarest species, there are only thought to be around 450 of this bird remaining (as of last full survey in 2015). It is found in Ōkārito forest and surrounds in South Westland, predator-free islands of Marlborough Sounds, this is one of 5 designated kiwi sanctuaries declared in 2000.

 

As you can see, Kiwi is not a species but a group of species. While different species have been known to breed where their range overlaps, saving each species is a separate task

Tokoeka Kiwi

Translating to Weka with a walking stick, this species

  • Haast tokoeka is Threatened – Nationally Vulnerable 400
  • Southern Fiordland is Threatened – Nationally Endangered
  • Northern Fiordland tokoeka is Threatened – Nationally Vulnerable
  • Rakiura tokoeka is At Risk – Naturally Uncommon

Stoats are the main threat, with the total population numbering around 13000

Great Spotted Kiwi

Current population 14,000, it is restricted to the upper parts of the south islands national parks – specifically Sub-alpine zones of North West Nelson, the Paparoa Range, and Arthur’s Pass. 

The largest species, it is thought to be declining by around 1.6% a year.

There are 4 genetically distinct populations Northwest Nelson, Westport, Paparoa Range and Arthur’sPass–Hurunui.

There are plans in place to save the species but time will tell if they prove successful. 

 

Little spotted Kiwi

With a population of 1670it is found on Kapiti island (1200 are found on Kapiti island, from 5 translocated to the island early in teh 20th century) and 10 other pest free areas.

They start feeding themselves and roaming alone at 5-7 days, though they will return to the nest for around 60.

Each population is either stable or growing, so the overall trend is up.

Brown Kiwi

Living in lowland and coastal native forest and subalpine areas in the North Island, there are around 26,000 of this species. Although the most numerous, the population is reducing around 2-3% each year. It is estimated that without a change it will be lost in 2 generations.

Having said this, they have a greater capacity to recover, as unlike other species, they usually produce 2 eggs each time they mate, and can produce 2 clutches a year.

There are 4 distinct subspecies which live in different areas and do not interbreed.

  • Northland brown kiwi 8000
  • Coromandel brown kiwi 1700
  • Western brown kiwi 8000
  • Eastern brown kiwi 8000

Main threats is from predation by dogs.

As always, we are keen to add links that will allow people to book to see these animals in the wild. If you work as a tour guide or similar, do get in touch – click on list your wild place on the home page.

Ratites

Ratites

You will find images of each of these species below, linking to a page about each, similar or closely related species will be grouped together initially, until links require their splitting. 

It should be noted that there are a few other species, which have been lost over time. These include 3 species of elephant bird from Madagascar and 9 species of Moa, all of which was found in New Zealand and all of which were lost. Thankfully at the current time, the Kiwi has not followed its bigger cousin, but we must not be laid back

Common ostrich (female)
Somali ostrich male
Kiwi species

Found across much of Africa, the common ostrich is a relatively common site in the right places. Capable of defending itself, it is usually only found in larger reserves. There are a number of subspecies click here to read more and visit our ostrich page

Recently shown to be a separate species (though looking very similar to the common ostrich), this is found in Somalia, most of Kenya, and north-east Ethiopia. Click here for the Ostrich page

Restricted to the islands of New Zealand, the kiwi is not one species but 5. Having arrived on these islands when there were no land predators, they lost the ability to fly. Unfortunately the arrival of Europeans quickly changed this. Click here for the Kiwi page

Rhea species
Cassowaries
Tinamou - a group of 46 species

The Rhea consists of two species, named the greater and lesser Rhea. They are found on the plains of eastern and southern South America. To visit their page, click here

Cassowaries are found in Australia, Indonesian islands, and the island of New Guinea. Perhaps not surprisingly, given their distribution over a large area, and the fact that they are flightless, so cannot mix, there are 3 species. To visit their page click here

Finally the Tinamous family, a group of 46 species. It is likely to be a while before I get round to building pages for all these species, but should you work in conservation or tourism with these species, you can help fill in the gaps. Although initially thought to be a sister clade, recent analysis has shown that these birds are part of the Ratite family –  Tinamou birds can fly

Those I have put in pictures for (29) are here  but we will hpe to add the rest over time, as well as building species pages

Birds

Birds

Birds are defined as warm-blooded vertebrates. They have feathers, toothless beaked jaws, a high metabolic rate, a 4 chamber heart, a strong and lightweight skeleton and the laying of hard-shelled eggs.

Now, within these constraints, the birds vary a great deal.

The smallest bird is the bee hummingbird, which has a wingspan of 6.8cm. The largest bird has a wingspan of 3.5m (40 times large). In terms of weight, the bee hummingbird is also the lightest at just 1.95 grams, the Kori bustard weighs as much as 19kg, which is almost 10000 times heavier (heaviest flying bird). The heaviest bird is the Ostrich, which can weigh over 100kg, though these can not fly.

Looking at it in a different way, there are roughly 10,000 species of birds in the world. Now, while this may change as this website grows (both with other authors, and assistance from readers) at the current time, it would be absurd to think that I could build a page for each of these many species. What this page will try to do, is to build a page for each group of birds. Of course, the other point of this website, is that this is to assist in people travelling to see these species in the wild. As such, while I am fully of the opinion that every bird matters, we will concentrate- to begin with, on birds which are popular and/or are interesting to see.

To start, below you will see the initial 2 clades (it should be noted that there was at one time 7 clades, which include clades like Diosaruia), and each clade has two families. 

                                   Palaeognathae (ratites and Tinamou)                                                                                                               Neognathae

Struthionimorphae

This contains just 1 species the Osterich (alongside many extinct species). The male is black, the female is brown

 As this is all of the Struthionimorphae family, you will be able to visit the Osterich page by clicking on either image.

Notopalaeognathae

This contains Rheas, Cassowaries, Emus, Kiwis and Tinamous (as well as the extinct Moas and Elephant bird)

This family includes a number of species so as we build pages, they will be linked to images below (the pictures for these species in directly below here)

Pangalloanserae

There are two subgroups in this group, though Asterionis is extinct. The only other group is Galloanserae or fowl – containing 

180  water-fowl (Anseriformes) species

  290 Land-fowl (Galliformes) Species.

 

Neoaves

This contains the rest of the birds not already included in another group. This is roughly 95% of birds.

Now, Understandably, this group covering 95% of birds, we will not be listing every species. However, we will endeavour to list groups of interest down to a lower level- I know that there is a great deal of interest in birds, and I will rely on this website taking off to a greater degree in order to push this further

This family is large and varied. We are going to start with currently agreed “magnificent seven” supraordinal clades, as well as the three orphaned orders. 

Notopalaeognathae

Emu_walking
Casuariformes Emu, Cassowariy - (Cassowaries - credit Nevit_Dilmen)
Little spotted kiwi - Judi Lapsley Miller
Rhea Quartl
Tinamoous 46 species (this image Elegant crested tinamou)

Neoaves

1. Telluraves (landbirds) This photo Red-tailed hawk, photo credit Rhododentrites australavians (passerines, parrots, seriemas, and falcons) as well as the afroavians (including the Accipitrimorphae – eagles, hawks, buzzards, vultures etc. – owls and woodpeckers, among others), photo credit Rhododentrites
2. Aequornithes (Waterbirds) Shy albatross Photo credit JJ Harrison
3. Eurpygimorphae (tropicbirds, Kagu and Sunbittern) White-tailed tropicbird photo credit Yooshau
4. Otidimorphae (Turacos, Bustard and Cuckoos) Purple-crested Turaco - Bernard Dupont
5. Strisores (night birds - Nightjars, Nighthawks and Allies, Potoos, Oilbirds, Frogmouths, swifts and hummingbirds, Owlet-nighthars)
6. olumbimorphae (Pigeons and doves, Sandgrouse, Pin-tailed_sandgrouse, Mesites, this image Pin-tailed sandgrouse photo credit Francesco Veronesi
7. Mirandornithes (flamingo and grebes) this image flamingoes lake nakuru national park
8. Opisthocomidae Hoatzins_in_Brazil Photo credit Claudio Dias Timm
9. Gruiformes cranes and rails (and a few more) this image Grey_Crowned_Crane_at_Zoo_Copenhagen photo credit Jepsen
10, Charadriiformes - shorebirds (wadesr, gulls, Auks)photo credit MathKnight
Posted on

Bringing the Kiwi back to Wellington wilds

The Kiwi is an interesting bird. As with many birds that developed on islands without mammals, they cannot fly.

As you can see, not really looking like a bird anymore, it is incapable of flight

In the case of new Zealand, the problem is simple. Those migrating to the island, brought with them rabbits. The rabbits escaped, and without any predators increased to silly levels. In order to control the rabbit population, stoats and similar predators were introduced, but these found the Kiwi a far easier meal.

In this instance, 11 birds have been introduced to the wilds near Wellington, for the first time in 100 years. These are the first of 250 birds that will arrive to settle in this area. Being the capital of new Zealand, it is impressive to have any surviving wildlife nearby. Yet Wellington prides itself on this work, and this is not its only move in the direction of rewilding.

It is thought that before humans arrived, as many as 12 million Kiwis roamed free in the country. Currently just 68,000 remain, however this number is growing slowly but surely. The arrival of Kiwi in this area, has required the countries biggest intensive Stoat trapping network as well as buy-in from a disparate array of land users.

See Animals Wild