.תרוויח תודג תיכוכ (341






Pale Sand Martin
Pale Sand Martin
Pale Sand Martin




Riparia diluta
Riparia diluta
Riparia diluta


לארשי

 .תודג תינונס לש ןימ תתל הבשחנ הנורחאל דע :תרוויח תודג תיכוכ
.םינימ תת שמח םע דרפנ ןימכ םויכ תגווסמ ,ילוקו יגולופרומ ינוש ללגב
ריהב הנוחג תרפרפא-םוח הבג .טעמ דדוקמ בנז תלעבו המוח ,הנטק תינונס
בחרו רצק הרוקמ ,ההכ המוח ןיעה תיתשק .הזח תא הצוח םוח ספ .םיריהב הנורגו הייחל
. הנממ הריהב ךא תודג תיכוכל דואמ המוד .תומוח םילגרהו
םיחותפ םיפונב ,םימ תברקב התויח תיב .היסא םורדו חרזמל ריביסמ ערתשמ הלודיג תיב
.'מ 4500 לש םורל דע
.ביבאב קר החיכש אל ךרוא תרבוע ץראב
'ח הימרי ... רוגעו סוסו ,רותו...


Subspecies and Distribution.
R. d. diluta S & SE Kazakhstan. R. d. gaveilovi C Siberia to Lena, and Cisbaikalia to Tuva.
R. d. transbaykalica Transbaikalia. R. d. indica Pakistan and India.
R. d. fohkienensis C&E China. R. d. tibetana SW China.

Descriptive notes.

Forms a superspecies with R. paludicola, R. congica and R. riparia. Until recently considered conspecific with last but differs morphologically and vocally. 12 cm, 13-15 g, wingspan 26-29 cm. Nominate race is pale grey brown above, remiges and rectrices darker brown, tail shallowly forked. Underparts dingy white, weakly defined pale brown breast band. Underwing brown. Distinguished from similar Collared Sand Martin by paler and greyer upperparts. Sexes alike.

Habitat.

Mainly open country, often near water.In area of sympatry with R. riparia in arid steppe, farther from water sources than latter.

Food and Feeding

Small airborne invertebrates. Feeds almost exclusively in flight, also recorded feeding on ground.

Breeding.

Nov-May, mainly Feb-Apr. Usually small colonies. Nest, hole in river bank, sand quarry, or sea-cliff, occasionally in drain pipe or other artificial hole. Nes-cup made of feathers, grass, leaves, etc.
3-4 eggs. No further information.

Movements.

N populations migratory. Nominate race probably winters mainly in India, but trvotfrf sd gst W as Egypt and Israel.

Status and Conservation

Not globally threatened. Locally common. Breeding sites probably local and ephemeral as for R. riparia and affected by similar factors, such as flooding of nests.

Israel.

In Israel R. diluta an uncommon passage migrant, exclusively in spring.

(in Israel)

(in Israel)

HOME NEXT