Tuesday, May 11, 2010

Kilombero Trip May 2010

Long time! I’m back at SUA and still receive the interesting e-mails from your internet-group. You never replied to me last year if you got my bird list from 2008-09 or not (not the most impressive list; I believe I bagged some 360 species, or thereabouts…)

Anyway, I just came back from a short trip to Kilombero (see attached list and skimmer-pic’s; nests of Kilombero weaver in the background on pic. 1303), and will probably go back for a longer stay soon. Do you have a fairly complete species list for the area, particularly the Kilombero river, that you could e-mail me? Other valuable information about the area is warmly welcomed.

Ole Tobias
SUA, Morogoro

Tuesday, May 4, 2010

Amur Falcon Migration

 Hi Bernd,

I sent this out in January when I first heard of your sat tag programme. This from what we know from observations in Tanzania. 216 records on our database. Coastal rains were later than usual this year, our heaviest rains this past week when the Amurs will have normally already passed though, main movement in late March rather than April. Look forward to seeing your route maps.

No resident observers in SE Tanzania.

These birds migrate too high for ground based observers, only coming down to feed prior to roost or in heavy rain storms. One recent "spring" record of a flock passing through the Iringa Highlands, observed from a high point not normally visited and not included on this map.

ABC members will have to check our web site for this map.



CRAIG T. SYMES and STEPHAN WOODBORNE (2010) Migratory connectivity and conservation of the Amur Falcon Falco amurensis: a stable isotope perspective. Bird Conservation International (online early)

Stable isotopes (δD, δ13C, δ15N) were measured in adult and juvenile Amur FalconFalco amurensis feathers to understand the migratory connectivity of this species. Using the OIPC (Online Isotopes in Precipitation Calculator) and a calibration curve for American Kestrels Falco sparverius we predicted the breeding range of South African Amur Falcons in the Palaearctic. δD values for juvenile feathers (mean ± SE = -58.1 ± 2.5‰, range -83.9 to -25.7‰) and predicted Palaearctic annual precipitation values indicated that juvenile Amur Falcons in South Africa originated from across their entire Palaearctic range. This rejects the leapfrog migration hypothesis and suggests the widespread movement of birds south, with a funnelling effect into the subregion where they become concentrated over a narrower distribution range. Adult δDf values were more depleted (-37.4 ± 1.8‰, range = -71.3 to -9.3‰) than predicted annual precipitation values for sites where feathers moulted in South Africa (-20.2 ± 0.9‰) but there was no correlation between δDp and δDf. This, together with significant variation of δ13C among sites and annual fluctuations in roost sizes, suggests that roost site fidelity is low in the overwintering range. Populations not confined to breeding sites in South Africa are able to move widely across the subregion, feeding on a broad range of arthropods that become seasonally abundant during the austral summer. Total population estimates for South Africa are significantly lower than global estimates so a significant proportion of the population may not overwinter in South Africa or global populations are significantly lower than estimated. In South Africa, roosts that number hundreds to thousands of individuals are often in large exotic trees, e.g. Eucalyptus sp. They are often tolerant of disturbance at roosts which may be of little concern for their conservation. Habitat changes in the overwintering range in South Africa though, particularly due to agriculture, afforestation and strip mining, may affect global population numbers. There is also concern over the persecution of birds along their migratory route.

----- Original Message -----
From: Mindy Rosenzweig
To: AfricanBirding@yahoogroups.com
Sent: Sunday, May 02, 2010 12:08 PM
Subject: Re: [AfricanBirding] Amur Falcon migration


Greetings from Egypt! This species has never been recorded in Egypt to our knowledge, but presumed to occur given our reports of this species from the WP. If any of our tracked birds, are heading toward Egypt or are recorded here...please let us know.


Mindy Baha El Din

--- On Sun, 2/5/10, WWGBP@aol.com wrote:

From: WWGBP@aol.com
Subject: [AfricanBirding] Amur Falcon migration
To: AfricanBirding@yahoogroups.com
Date: Sunday, 2 May, 2010, 11:31 AM

Dear All,

We are satellite tracking a number of Amur Falcons at the moment which I fitted with transmitters in January in South Africa. Most of them are in Somalia right now and have come through Tanzania.

We would be interested in any published and unpublished records on Amur Falcon migration.

Some of our publications using satellite telemetry are available as PDF files at www.raptor-research .de.

With kind regards,

Bernd Meyburg

BUMeyburg@aol. com
www.raptor-research .de

Sunday, May 2, 2010

More Furadan Killings reported - Birds and Crocs!

Furadan is easily found in any shop in dar, for a very small amount, 6,000
tsh a Kg. I don't know about Mbeya, but in Selous hundreds of crocodiles
have been poached in the past years with it.
Sad to hear it is used also in Mbeya

At 07:40 AM 4/17/2010, nsajigwa kyonjola wrote:
>Dear all,
>I received a call on 15th April 2010 from one WCST member in Mbarali
>District in Mbeya Region who was visiting one area 40 km from Ubaruku.He
>had information about bird poisoning in that area and at that time he
>counted eight ( 8) Grey Crowned Cranes and four African White-backed
>Vultures all dead of poisonous chemicals.He says poisons like
>Thiodan,Furadan are widely in use.Is there anybody with more information
>from that area?
>Kindest Regards,
>Nsajigwa A.G,Kyonjola
>Bird Conservation Officer,
>Wildlife Conservation Society of Tanzania,
>Garden Avenue, Plot 39;
>P. O. Box 70919,