PENTAGON MILK-CARTON NEST BOX

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A pentagon-shaped nest box made from four one-half-gallon milk cartons is ... CAJA DE ANIDAMIENTO PENTAGONAL CONSTRU•DA CON EL CARTON DE.

j. Field Ornithol., 64(2):239-243

PENTAGON

MILK-CARTON

NEST

BOX

PATRICIAA. POCHOP 1 AND RON J. JOHNSON 2 Departmentof Forestry,Fisheriesand Wildlife 202 Natural

Resources Hall

Lincoln, Nebraska 68583-0879 USA

Abstract.--A pentagon-shapednest box made from four one-half-gallon milk cartons is described.Two cartonsfor interior walls and two for exteriorwalls were appropriatelycut and assembledusing staplesand duct tape. None of 206 boxesusedfor House Sparrows (Passerdomesticus) throughone nestingseason(7 mo), and only eight of 120 boxesused through two nestingseasonsand the interveningwinter (19 mo), required replacement. About 35% required minor retaping eachyear. This inexpensivebox was readily accepted by House Sparrows,withstoodconsiderableweather extremes,and appearswell-suitedfor field studiesof House Sparrowsand possiblyother cavity-nestingbirds.

CAJADE ANIDAMIENTO PENTAGONALCONSTRU•DACON EL CARTONDE ENVASES

PARA

LECHE

Sinopsis.--Sedescribeuna caja de anidamientopentagonal,construldacon el cart6n de envases para lecheconcapacidadpara medioga16n.Dos cartonespara las paredesinteriores y dospara las exterioresruetoncortadasy ensambladas adecuadamente utilizandopresillas y cinta adhesiva.Ninguna de las 206 cajasutilizadas pot una temporadade anidamiento (7 meses),pot parte de individuosde Passerdomesticus, requiri6 remplazamientoy s61oocho de 120 tuvieron que set remplazadasal set utilizadas pot dos temporadasde anidamiento (19 meses).Aproximadamenteun 35% de las cajasrequirieronreparacionesmenorescon cinta adhesivaal afio de ser colocadas.Estascajas,las cualessonde bajo costo,fueronmuy bien aceptadas pot los gorrionesy resistieronadecuadamente condiciones ambientales extremas.Estasparecenmuy apropiadaspara estudiosde campode gorrionesy probablemente de otras avesque anidan en cavidades.

Nest boxesoftenare usedwhen studyingcavity-nestingbirds.Variables suchas cavity size, densityand placement(e.g., site, height, exposure) can be controlledto easeresearcheraccessto nests.During a study of House Sparrows (Passerdomesticus),we wanted a nest box that was inexpensiveand easyto make, yet highly attractiveto House Sparrows. Attractivenesswas important becausesome other studiesreported low (

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